89-488: NZ COVID Tracer is a mobile software application that enables a person to record places they have visited, in order to facilitate tracing who may have been in contact with a person infected with the COVID-19 virus. The app allows users to scan official QR codes at the premises of businesses and other organisations they visit, to create a digital diary. It was launched by New Zealand's Ministry of Health on 20 May 2020, during
178-415: A Delta case varies significantly, especially depending on a country's sequencing rate (less than 0.05% of all COVID-19 cases have been sequenced in the lowest-sequencing countries to around 50 percent in the highest). By 22 June 2021, more than 4,500 sequences of the variant had been detected in about 78 countries. Reported numbers of sequences in countries with detections are: The first cases of
267-536: A Government plea for New Zealanders to keep scanning over summer in order to avoid another outbreak. In addition, there were a total of 173,583,645 poster scans and users have created 7,100,714 manual diary entries. On 22 August, the Government announced that record-keeping including scanning with the COVID Tracer app or manual signing will now be mandatory for most events and businesses at all alert levels in response to
356-445: A QR code displayed. It became compulsory for businesses to display the official QR codes at their doors or reception areas from noon 19 August. By 18 August, more than 234,000 QR posters had been generated but not all clinics and retirement villages had displayed them. From 11:59 pm on 3 September, it became compulsory for all public transport providers, including buses, trains, ferries, ride-share vehicles and train operators, to provide
445-798: A bad cold and not realize they need to isolate. Common symptoms reported have been headaches, sore throat, a runny nose or a fever. [REDACTED] : VE reduces <10%, or VE >90% without comparator [REDACTED] : VE reduces between 10 and <20% [REDACTED] : Neutralization reduces <2-fold [REDACTED] : Neutralization reduces 2 to <5-fold [REDACTED] [REDACTED] : Neutralization reduces 5 to <10-fold [REDACTED] [REDACTED] [REDACTED] : Neutralization reduces ≥ 10-fold Moderna & Pfizer-BioNTech were evaluated together. WHO has not issued preventative measures against Delta specifically; non-pharmaceutical measures recommended to prevent wild type COVID-19 should still be effective. These would include washing hands, wearing
534-422: A brief maintaining all three sublineages of B.1.617 as VOI, estimating that a "greater understanding of the risks related to these B.1.617 lineages is needed before any modification of current measures can be considered". The Delta/ B.1.617.2 genome has 13 mutations (15 or 17 according to some sources, depending on whether more common mutations are included) which produce alterations in the amino-acid sequences of
623-669: A browser, which can be noticeably slower than the equivalent native app. It also may not have the same level of features as the native app. The concept of the hybrid app is a mix of native and web-based apps. Apps developed using Apache Cordova , Flutter , Xamarin , React Native , Sencha Touch , and other frameworks fall into this category. These are made to support web and native technologies across multiple platforms. Moreover, these apps are easier and faster to develop. It involves use of single codebase which works in multiple mobile operating systems. Despite such advantages, hybrid apps exhibit lower performance. Often, apps fail to bear
712-504: A browser. Hybrid apps are built using web technologies such as JavaScript , CSS, and HTML5 and function like web apps disguised in a native container. Most mobile devices are sold with several apps bundled as pre-installed software, such as a web browser , email client , calendar , mapping program, and an app for buying music , other media, or more apps. Some pre-installed apps can be removed by an ordinary uninstall process, thus leaving more storage space for desired ones. Where
801-559: A decline in NZ COVID Tracer app usage, citing data from the Ministry of Health. Between 1 December 2020 and 1 April 2022, COVID Tracer app usage declined from a peak of 1.5 million devices to below 200,000 on 1 April. However, devices using the associated Bluetooth tracing rose from below 400,000 in December 2020 to below 2.4 million by early April 2022. In August 2023, the NZ COVID Tracer app
890-552: A growing number of mobile applications available at app stores and the improved capabilities of smartphones, people are downloading more applications to their devices. Usage of mobile apps has become increasingly prevalent across mobile phone users. A May 2012 comScore study reported that during the previous quarter, more mobile subscribers used apps than browsed the web on their devices: 51.1% vs. 49.8% respectively. Researchers found that usage of mobile apps strongly correlates with user context and depends on user's location and time of
979-450: A lesser extent. A study published online (not peer-reviewed) by Guangdong Provincial Center for Disease Control and Prevention may partly explain the increased transmissibility: people with infection caused by Delta had 1,000 times more copies of the virus in the respiratory tracts than those with infection caused by variants first identified in the beginning of the pandemic; and it took on average 4 days for people infected with Delta for
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#17328592439991068-457: A mask, maintaining distance from others, avoiding touching the mouth, nose or eyes, avoiding crowded indoor spaces with poor ventilation especially where people are talking, going to get tested if one develops symptoms and isolating if one becomes sick. Public Health authorities should continue to find infected individuals using testing, trace their contacts, and isolate those who have tested positive or been exposed. Event organizers should assess
1157-541: A mobile device's screen size for a user's hand. Mobile UI contexts signal cues from user activity, such as location and scheduling that can be shown from user interactions within a mobile application. Overall, mobile UI design's goal is primarily for an understandable, user-friendly interface. Mobile UIs, or front-ends, rely on mobile back-ends to support access to enterprise systems. The mobile back-end facilitates data routing, security, authentication, authorization, working off-line, and service orchestration. This functionality
1246-485: A result, most businesses develop apps for multiple platforms. While developing native apps, professionals incorporate best-in-class user interface modules. This accounts for better performance, consistency and good user experience. Users also benefit from wider access to application programming interfaces and make limitless use of all apps from the particular device. Further, they also switch over from one app to another effortlessly. The main purpose for creating such apps
1335-500: A six digit code that allows them to complete the registration process. The app also allows users to store their contact details and physical address, which is provided to the National Close Contact Service (NCCS) in order to facilitate contact tracing in the event that the user is identified as a close contact of someone who has contracted COVID-19 . The COVID Tracer app also supports two-factor authentication . While
1424-625: A spokesperson for Public Health England, clarified "It is too early to assess the case fatality ratio compared to other variants." A Canadian study released on 5 October 2021 revealed that the Delta variant caused a 108 percent rise in hospitalization, 235 percent increase in ICU admission, and a 133 percent surge in death compared to other variants. is more serious and resulted in an increased risk of death compared to previous variants, odds that are significantly decreased with immunization. The chance of detecting
1513-634: A type of digital distribution platforms. The term "app", short for " application ", has since become very popular; in 2010, it was listed as " Word of the Year " by the American Dialect Society . Apps are broadly classified into three types: native apps, hybrid and web apps. Native applications are designed specifically for a mobile operating system, typically iOS or Android. Web apps are written in HTML5 or CSS and typically run through
1602-450: A variation in time between submitting an app and it going live. Prime Minister Jacinda Ardern described the NZ COVID Tracer app as a "digital diary". It worked on mobile devices using Android 7.0 or above, and Apple iOS 12 or above, with future updates to include support for older systems. Immediately following its release, several users encountered difficulties with logging into the app or using it. There were also complaints from
1691-438: Is app wrapping . But there also are some disadvantages like copyright infringement or the loss of warranty rights. Functionality, productivity and user experience are particularly limited under app wrapping. The policies of a wrapped app can not be changed. If required, it must be recreated from scratch, adding cost. An app wrapper is a mobile app made wholly from an existing website or platform , with few or no changes made to
1780-472: Is also essential. Mobile UI considers constraints and contexts, screen, input and mobility as outlines for design. The user is often the focus of interaction with their device, and the interface entails components of both hardware and software. User input allows for the users to manipulate a system, and device's output allows the system to indicate the effects of the users' manipulation. Mobile UI design constraints include limited attention and form factors, such as
1869-414: Is an alternate approach to security. Rather than controlling an employee/s entire device, containerization apps create isolated pockets separate from personal data. Company control of the device only extends to that separate container. Especially when employees " bring your own device " (BYOD), mobile apps can be a significant security risk for businesses, because they transfer unprotected sensitive data to
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#17328592439991958-426: Is meant to off-set the security risk of a Bring Your Own Device (BYOD) work strategy. When an employee brings a personal device into an enterprise setting, mobile application management enables the corporate IT staff to transfer required applications, control access to business data, and remove locally cached business data from the device if it is lost, or when its owner no longer works with the company. Containerization
2047-448: Is possible to offer native apps securely through enterprise mobility management . This enables more flexible IT management as apps can be easily implemented and policies adjusted at any time. SARS-CoV-2 Delta variant The Delta variant (B.1.617.2) was a variant of SARS-CoV-2 , the virus that causes COVID-19 . It was first detected in India on 5 October 2020. The Delta variant
2136-453: Is primarily used to distribute "Windows Store apps"—which are primarily built for use on tablets and other touch-based devices (but can still be used with a keyboard and mouse , and on desktop computers and laptops ). Mobile application management (MAM) describes software and services responsible for provisioning and controlling access to internally developed and commercially available mobile apps used in business settings. The strategy
2225-716: Is something where we're still gaining data daily. But the most recent data was looking at convalescent sera of COVID-19 cases and people who received the vaccine used in India, the Covaxin. It was found to neutralise the 617 variants. Another study by the Centre for Cellular and Molecular Biology (CCMB) in Hyderabad found Covishield (Oxford–AstraZeneca) vaccinated sera offers protection against lineage B.1.617. A study conducted by Public Health England (PHE), found that compared to those who were unvaccinated those who were vaccinated with either
2314-747: Is supported by a mix of middleware components including mobile app servers , Mobile Backend as a service (MBaaS), and SOA infrastructure. Conversational interfaces display the computer interface and present interactions through text instead of graphic elements. They emulate conversations with real humans. There are two main types of conversational interfaces: voice assistants (like the Amazon Echo ) and chatbots . Conversational interfaces are growing particularly practical as users are starting to feel overwhelmed with mobile apps (a term known as "app fatigue"). David Limp, Amazon's senior vice president of devices, says in an interview with Bloomberg, "We believe
2403-425: Is to ensure best performance for a specific mobile operating system. A web-based app is implemented with the standard web technologies of HTML , CSS , and JavaScript . Internet access is typically required for proper behavior or being able to use all features compared to offline usage. Most, if not all, user data is stored in the cloud . The performance of these apps is similar to a web application running in
2492-524: The Amazon Appstore and F-Droid . Usually, they are downloaded from the platform to a target device, but sometimes they can be downloaded to laptops or desktop computers . Apps can also be installed manually, for example by running an Android application package on Android devices. Some apps are freeware , while others have a price, which can be upfront or a subscription . Some apps also include microtransactions and/or advertising . In any case,
2581-849: The Centers for Disease Control and Prevention (CDC) declared Delta a variant of concern. The variant is thought to be partly responsible for India's deadly second wave of the pandemic beginning in February 2021. It later contributed to a third wave in Fiji , the United Kingdom and South Africa , and the WHO warned in July 2021 that it could have a similar effect elsewhere in Europe and Africa . By late July, it had also driven an increase in daily infections in parts of Asia ,
2670-623: The Institute of Genomics and Integrative Biology (IGIB), said the study on the effectiveness of the available vaccines on lineage B.1.617 suggests that post-vaccination, the infections are milder. Anthony Fauci , the Chief Medical Advisor to the President of the United States , has also expressed his confidence regarding the preliminary results. In an interview on 28 April, he said: This
2759-561: The National Centre for Infectious Diseases in Singapore posted a paper suggesting that patients testing positive for Delta are more likely to develop pneumonia and/or require oxygen than patients with wild type or Alpha. On June 11, Public Health England released a report finding that there was "significantly increased risk of hospitalization" from Delta as compared with Alpha; the risk was approximately twice as high for those infected with
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2848-524: The Pfizer-BioNTech or AstraZeneca-Oxford had 33% less instances of symptomatic disease caused by the variant after the first dose. Among those who were two weeks after the receiving their second dose of the Pfizer-BioNTech vaccine 88% less subjects had symptomatic disease from the Delta variant versus those that were unvaccinated. Among those who were two weeks after the receiving their second dose of
2937-592: The United States , Australia , and New Zealand . The Delta variant has mutations in the gene encoding the SARS-CoV-2 spike protein causing the substitutions D614G , T478K, P681R and L452R . It is identified as the 21A, 21I, and 21J clades under the Nextstrain phylogenetic classification system. The virus has also been referred to by the term "Indian Variant" as it was originally detected in India. However,
3026-460: The viral load in the first positive test of infections with the variant was on average ~1000 times higher than with compared infections during 2020. Preliminary data from a study with 100,000 volunteers in the UK from May to July 2021, when Delta was spreading rapidly, indicates that vaccinated people who test positive for COVID-19, including asymptomatic cases, have a lower viral load in average. Data from
3115-737: The App Store has 650,000 available apps to download as well as 30 billion apps downloaded from the app store until that date. From an alternative perspective, figures seen in July 2013 by the BBC from tracking service Adeven indicate over two-thirds of apps in the store are "zombies", barely ever installed by consumers. Microsoft Store (formerly known as the Windows Store) was introduced by Microsoft in 2012 for its Windows 8 and Windows RT platforms. While it can also carry listings for traditional desktop programs certified for compatibility with Windows 8, it
3204-598: The AstraZeneca-Oxford vaccine 60% less subjects had symptomatic disease from the Delta variant versus those that were unvaccinated. A study by a group of researchers from the Francis Crick Institute , published in The Lancet , shows that humans fully vaccinated with the Pfizer-BioNTech vaccine are likely to have more than five times lower levels of neutralizing antibodies against the Delta variant compared to
3293-467: The COVID Tracer app received a Bluetooth update that would create an anonymised record of every person the user has ever been near, bringing New Zealand in line with other countries such as Singapore which have been using Bluetooth contact tracing since March 2020. Using technology developed by Google and Apple , the Bluetooth upgrade also allows the swapping of "randomised keys" with other phones carrying
3382-481: The COVID Tracer app received an update that would allow contact tracing via Bluetooth . At the same time, the app's source code was released on GitHub. On 30 January, the Ministry of Health recommended that people with an Android 5 device use the similar Rippl app, as NZ COVID Tracer does not work on Android 5. By 8 February 2021, the Health Minister reported that the COVID Tracer app had 2,559,151 users following
3471-613: The COVID-19 virus. In August 2021, Public Health England (PHE) reported secondary attack rate in household contacts of non-travel or unknown cases for Delta to be 10.8% vis-à-vis 10.2% for the Alpha variant ; the case fatality rate for those 386,835 people with Delta is 0.3%, where 46% of the cases and 6% of the deaths are unvaccinated and below 50 years old. Immunity from previous recovery or COVID-19 vaccines are effective in preventing severe disease or hospitalisation from infection with
3560-556: The Delta variant in England had a case fatality rate (CFR) of 0.2%, while the Alpha variant's case fatality rate was 1.9%, although the report warns that "case fatality rates are not comparable across variants as they have peaked at different points in the pandemic, and so vary in background hospital pressure, vaccination availability and rates and case profiles, treatment options, and impact of reporting delay, among other factors." James McCreadie,
3649-630: The Delta variant is between 40% and 60% more transmissible than the previously dominant Alpha variant , which was first identified in the UK (as the Kent variant). Given that Alpha is already 150% as transmissible as the original SARS-CoV-2 strain that emerged in late 2019 in Wuhan , and if Delta is 150% as transmissible as Alpha, then Delta may be 225% as transmissible as the original strain. BBC reported that R 0 {\displaystyle R_{0}} – basic reproduction number , or
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3738-403: The Delta variant is only one of three variants of the lineage B.1.617 , all of which were first detected in India. At the end of May 2021, the WHO assigned the label Delta to lineage B.1.617.2 after introducing a new policy of using Greek letters for variants of concern and variants of interest. There are three sublineages of lineage B.1.617 categorised so far. B.1.617.1 ( Kappa variant )
3827-827: The Delta variant is transmitted among those immunized with current vaccines. On August 10, a study showed that the full vaccination coverage rate is correlated inversely to the SARS-CoV-2 delta variant mutation frequency in 16 countries (R-squared=0.878). Data strongly indicates that full vaccination against COVID-19 may slow down virus evolution. In vitro experiments suggest that bamlanivimab may not be effective against Delta on its own. At high enough concentrations, casirivimab , etesevimab and imdevimab appear to still be effective. A preprint study suggests that sotrovimab may also be effective against Delta. Doctors in Singapore have been using supplemental oxygen, remdesivir and corticosteroids on more Delta patients than they did on previous variants. UK scientists have said that
3916-569: The Delta variant. On June 14, researchers from Public Health Scotland found that the risk of hospitalization from Delta was roughly double that of from Alpha. On July 7, a preprint study from epidemiologists at the University of Toronto found that Delta had a 120% greater – or more than twice as large – risk of hospitalization, 287% greater risk of ICU admission and 137% greater risk of death compared to non-variant of concern strains of SARS-COV-2. However, on July 9, Public Health England reported that
4005-473: The Google Play Store surpassed 50 billion, of the over 1 million apps available. As of September 2016, according to Statista the number of apps available exceeded 2.4 million. Over 80% of apps in the Google Play Store are free to download. The store generated a revenue of 6 billion U.S. dollars in 2015. Apple 's App Store for iOS and iPadOS was not the first app distribution service, but it ignited
4094-454: The Internet without knowledge and consent of the users. Reports of stolen corporate data show how quickly corporate and personal data can fall into the wrong hands. Data theft is not just the loss of confidential information, but makes companies vulnerable to attack and blackmail. Professional mobile application management helps companies protect their data. One option for securing corporate data
4183-696: The K417N mutation, which is also present in the Beta variant . The exchange at position 417 is a lysine-to- asparagine substitution. As of mid-October 2021, the AY.3 variant accounted for a cumulative prevalence of approximately 5% in the United States, and 2% worldwide. In mid-October the AY.4.2 Delta sublineage was expanding in England, and being monitored and assessed. It contains mutations A222V and Y145H in its spike protein, not considered of particular concern. It has been suggested that AY.4.2 might be 10-15% more transmissible than
4272-464: The Ministry of Health reported that 562,000 people had registered with the COVID Tracer app. 56,552 posters displaying the official QR codes had been created. There have been 1,035,154 poster scans to date. The Ministry of Health released a new version of the app on 30 July 2020 that could be used on phones running Android 6 or iOS 11. Additionally, the update added the ability for users to manually enter location data for places they visit that do not have
4361-432: The Ministry of Health securely on the user's device before being automatically deleted. Initially the period of retention for scan data was 31 days, however an update to the app on 9 September increased this to 60 days to make it easier for contact tracers to establish links between cases of COVID-19. First-time users are required to enter their name, phone number, email address and create a password. They will then receive
4450-555: The Moderna vaccine may be effective against death or hospitalization from the Delta variant. In a study of the University of Sri Jayewardenepura in July 2021 found the Sinopharm BIBP vaccine caused seroconversion in 95% of individuals studied that had received both doses of the vaccine. The rate was higher in 20-39 age group (98.9%) but slightly lower in the over 60 age group (93.3%). Neutralising antibodies were present among 81.25% of
4539-633: The NZ COVID Tracer app is currently only available in English, the New Zealand Government intends to include support for the Māori , Chinese , and several unspecified Pacific languages. On 10 June, the Government announced that it would be updating the NZ COVID Tracer app to allow the app to contact users who may have been exposed to COVID-19 and giving them the option of voluntarily sending their location history to public health officials. On 10 December,
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#17328592439994628-573: The Netherlands, the virus was still able to propagate significantly in the population with over 93.4% of blood donors being tested positive for SARS-CoV-2 antibodies after week 28, 2021. Many people there are not fully vaccinated, so those antibodies would have been developed from exposure to the wild virus or from a vaccine. Similar high seroimmunity levels occur in the United Kingdom in blood donors and general surveillance. A preprint found that
4717-1253: The Pango lineage designation system into variants from AY.1 to AY.28. However, there is no information on whether such classification correlates with biological characteristic changes of the virus. It is said that, as of August 2021, AY.4 to AY.11 are predominant in the UK, AY.12 in Israel, AY.2, AY.3, AY.13, AY.14, AY.25 in the US, AY.20 in the US and Mexico, AY.15 in Canada, AY.16 in Kenya, AY.17 in Ireland and Northern Ireland, AY.19 in South Africa, AY.21 in Italy and Switzerland, AY.22 in Portugal, AY.24 in Indonesia, and AY.23 in Indonesia, Singapore, Japan, and South Korea. Delta with K417N originally corresponded to lineages AY.1 and AY.2, subsequently also lineage AY.3, and has been nicknamed "Delta plus" or "Nepal variant". It has
4806-475: The QR codes for passengers to use. On 23 November 2020, the Ministry of Health released an update to the app that would no longer require users to sign up for an account or set a password. Existing users will also no longer be required to periodically sign in. The dashboard user interface was also improved to make the layout and navigation simpler. As of 25 November, there are 2,381,200 registered users. On 10 December,
4895-529: The UK in the early part of June 2021 were the Delta variant; they also cited evidence that the Delta variant was associated with an approximately 60% increased risk of household transmission compared to the Alpha variant. Canada 's first confirmed case of the variant was identified in Quebec on 21 April 2021, and later the same day 39 cases of the variant were identified in British Columbia . Alberta reported
4984-408: The UK it was reclassified as a "variant under investigation" (but not "of concern") in late October 2021. In Denmark, after a drop in AY.4.2 cases, a new fast surge was detected and monitored, but was not yet considered a cause of concern. The most common symptoms may have changed from the most common symptoms previously associated with standard COVID-19. Infected people may mistake the symptoms for
5073-474: The US, UK, and Singapore indicate that vaccinated people infected by Delta may have viral loads as high as unvaccinated infected people, but might remain infectious for a shorter period. Surveillance data from the Indian government's Integrated Disease Surveillance Programme (IDSP) shows that around 32% of patients, both hospitalised and outside hospitals, were aged below 30 in the second wave compared to 31% during
5162-427: The United States, the Netherlands, Denmark, France and probably many other countries, the Delta variant had become the dominant strain by July 2021. Depending on country, there is typically a lag from a few days to several weeks between cases and variant reporting. As of July 20, 2021, this variant had spread to 124 countries, and WHO had indicated that it was becoming the dominant strain, if not one already. In
5251-601: The app economy creates revenues of more than € 10 billion per year within the European Union, while over 529,000 jobs have been created in 28 EU states due to the growth of the app market. Mobile applications may be classified by numerous methods. A common scheme is to distinguish native , web-based, and hybrid apps. All apps targeted toward a particular mobile platform are known as native apps. Therefore, an app intended for Apple device does not run in Android devices. As
5340-454: The app. As of 20 May, more than 92,000 people had downloaded the app and over 1,000 businesses had signed up to it. On 12 June, Stuff reported that many businesses were finding the app clunky to use and had to rely upon secondary apps. A poll conducted on Neighbourly found that less than 37% of respondents had downloaded the COVID Tracer app due to privacy concerns, lack of access to a smartphone, and confusion about how to use it. By 17 June,
5429-512: The day. Mobile apps are playing an ever-increasing role within healthcare and when designed and integrated correctly can yield many benefits. Market research firm Gartner predicted that 102 billion apps would be downloaded in 2013 (91% of them free), which would generate $ 26 billion in the US, up 44.4% on 2012's US$ 18 billion. By Q2 2015, the Google Play and Apple stores alone generated $ 5 billion. An analyst report estimates that
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#17328592439995518-518: The detection of the Delta variant on 17 August 2021. Following the delta outbreak in August 2021, it was noted that the Bluetooth tracking feature was being used sparsely by government contact tracers. On 23 March, Prime Minister Jacinda Ardern announced that people would not need to use their COVID Tracer apps to scan QR codes at businesses and venues from 11:59 pm on 4 April. On 1 April, 1News reported
5607-566: The expected number of cases directly generated by one case in a population where all individuals are susceptible to infection – for the first detected SARS-CoV-2 virus is 2.4–2.6, whereas Alpha's reproduction number is 4–5 and Delta's is 5–9. These basic reproduction numbers can be compared to MERS (0.29-0.80 ), seasonal influenza (1.2–1.4 ), Ebola (1.4–1.8 ), common cold (2–3 ), SARS (2–4 ), smallpox (3.5–6 ), and chickenpox (10–12 ). Due to Delta's high transmissibility even those that are vaccinated are vulnerable, albeit to
5696-483: The explosion in number and variety of apps made discovery a challenge, which in turn led to the creation of a wide range of review, recommendation, and curation sources, including blogs, magazines, and dedicated online app-discovery services. In 2014 government regulatory agencies began trying to regulate and curate apps, particularly medical apps. Some companies offer apps as an alternative method to deliver content with certain advantages over an official website . With
5785-462: The first wave, among people aged 30–40 the infection rate stayed at 21%. Hospitalisation in the 20–39 bracket increased to 25.5% from 23.7% while the 0–19 range increased to 5.8% from 4.2%. The data also showed a higher proportion of asymptomatic patients were admitted during the second wave, with more complaints of breathlessness. A few early studies suggest the Delta variant causes more severe illness than other strains. On 7 June 2021, researchers at
5874-681: The health sector. Any information entered through the Tracer app including the locations that users sign into is stored securely on the phone and automatically deleted after 60 days. Users have the right to share information with contact tracers. Mobile app A mobile application or app is a computer program or software application designed to run on a mobile device such as a phone , tablet , or watch . Mobile applications often stand in contrast to desktop applications which are designed to run on desktop computers , and web applications which run in mobile web browsers rather than directly on
5963-462: The mobile device. Apps were originally intended for productivity assistance such as email, calendar, and contact databases, but the public demand for apps caused rapid expansion into other areas such as mobile games , factory automation , GPS and location-based services , order-tracking, and ticket purchases, so that there are now millions of apps available. Many apps require Internet access. Apps are generally downloaded from app stores , which are
6052-425: The mobile revolution and was opened on July 10, 2008, and as of September 2016, reported over 140 billion downloads. The original AppStore was first demonstrated to Steve Jobs in 1993 by Jesse Tayler at NeXTWorld Expo As of June 6, 2011, there were 425,000 apps available, which had been downloaded by 200 million iOS users. During Apple's 2012 Worldwide Developers Conference , CEO Tim Cook announced that
6141-518: The next big platform is voice." The three biggest app stores are Google Play for Android , App Store for iOS , and Microsoft Store for Windows 10 , Windows 10 Mobile , and Xbox One . Google Play (formerly known as the Android Market) is an international online software store developed by Google for Android devices. It opened in October 2008. In July 2013, the number of apps downloaded via
6230-600: The ongoing COVID-19 pandemic . It can be downloaded from the App Store and Google Play . The NZ COVID Tracer app was developed for the Ministry of Health by New Zealand company Rush Digital and partially relies on an Amazon Web Services platform. It was formally launched on 20 May 2020. Some people were able to download it from App Store on 19 May and a Health Ministry spokesperson said later that it had been submitted to App Store and Google Play that evening and that there can be
6319-511: The original COVID-19 strain. In June 2021, PHE announced it had conducted a study which found that after two shots, the Pfizer-BioNTech vaccine and the AstraZeneca vaccine are respectively 96% and 92% effective at preventing hospitalisation from the Delta variant. On July 3, researchers from the universities of Toronto and Ottawa in Ontario, Canada, released a preprint study suggesting that
6408-420: The original Delta variant. Mid-October 2021, AY.4.2 accounted for an estimated 10% of cases, and has led to an additional growth rate rising to about 1% (10% of 10%) per generational time of five days or so. This additional growth rate would grow with increasing prevalence. Without AY.4.2 and no other changes, the number of cases in the UK would have been about 10% lower. AY.4.2 grows about 15% faster per week. In
6497-472: The platforms (although these issues can be overcome with mobile device detection). Mobile application development requires the use of specialized integrated development environments . Mobile apps are first tested within the development environment using emulators and later subjected to field testing. Emulators provide an inexpensive way to test applications on mobile phones to which developers may not have physical access. Mobile user interface (UI) Design
6586-410: The potential risks of any mass gathering and develop a plan to mitigate these risks. See also Non-pharmaceutical intervention (epidemiology) . The Indian Council of Medical Research (ICMR) found that convalescent sera of the COVID-19 cases and recipients of Bharat Biotech 's BBV152 (Covaxin) were able to neutralise VUI B.1.617 although with a lower efficacy. Anurag Agrawal , the director of
6675-460: The proteins it encodes. The list of spike protein mutations is: 19R, (G142D), Δ156-157, R158G, L452R, T478K, D614G, P681R, D950N according to GVN, or T19R, G142D, del 156–157, R158G, L452R, T478K, D614G, P681R according to Genscript Four of them, all of which are in the virus's spike protein code, are of particular concern: The E484Q mutation is not present in the B.1.617.2 genome. As of August 2021, Delta variants have been subdivided in
6764-446: The public about iPhones and Android phones running the older, incompatible versions of operating systems being unable to download the app. The Ministry advised people without a compatible mobile device to keep a manual record of the people and places they have visited for contact tracing purposes. The app received an average rating of 2.6 on Google Play Store , with most complaints relating to its poor design and difficulty with finding
6853-537: The revenue is usually split between the application's creator and the app store. The same app can, therefore, cost a different price depending on the mobile platform. Mobile apps were originally offered for general productivity and information retrieval, including email, calendar , contacts, the stock market and weather information. However, public demand and the availability of developer tools drove rapid expansion into other categories, such as those handled by desktop application software packages. As with other software,
6942-510: The same look-and-feel in different mobile operating systems. Developing apps for mobile devices requires considering the constraints and features of these devices. Mobile devices run on battery and have less powerful processors than personal computers and also have more features such as location detection and cameras. Developers also have to consider a wide array of screen sizes, hardware specifications and configurations because of intense competition in mobile software and changes within each of
7031-489: The software does not allow this, some devices can be rooted to eliminate the undesired apps. Apps that are not preinstalled are usually available through distribution platforms called app stores . These may operated by the owner of the device's mobile operating system , such as the App Store or Google Play Store ; by the device manufacturers, such as the Galaxy Store and Huawei AppGallery ; or by third parties, such as
7120-473: The underlying application. The "wrapper" is essentially a new management layer that allows developers to set up usage policies appropriate for app use. Examples of these policies include whether or not authentication is required, allowing data to be stored on the device, and enabling/disabling file sharing between users. Because most app wrappers are often websites first, they often do not align with iOS or Android Developer guidelines. Alternatively, it
7209-558: The updated COVID Tracer app. The NZ COVID Tracer app was developed by the Ministry of Health in consultation with the Privacy Commissioner and has also undergone independent security testing. Any personal information and contact details registered on the Tracer app are provided to the National Close Contact Service. This information is retained for public health purposes only and is not shared with agencies outside
7298-673: The vaccinated individuals studied. On 29 June 2021, the director of the Gamaleya Institute, Denis Logunov, said that Sputnik V is about 90% effective against the Delta variant. On July 21, researchers from PHE published a study finding that the Pfizer vaccine was 93.7% effective against symptomatic disease from Delta after 2 doses, while the Astrazeneca vaccine was 67% effective. On August 2, several experts expressed concern that achieving herd immunity may not currently be possible because
7387-461: The variant outside India were detected in late February 2021, including the United Kingdom on 22 February, the United States on 23 February and Singapore on 26 February. British scientists at Public Health England redesignated the B.1.617.2 variant on 7 May 2021 as "variant of concern" (VOC-21APR-02), after they flagged evidence in May 2021 that it spreads more quickly than the original version of
7476-521: The variant. On 7 May 2021, PHE changed their classification of lineage B.1.617.2 from a variant under investigation (VUI) to a variant of concern (VOC) based on an assessment of transmissibility being at least equivalent to B.1.1.7 ( Alpha variant ); the UK's SAGE using May data estimated a "realistic" possibility of being 50% more transmissible. On 11 May 2021, the WHO also classified this lineage VOC, and said that it showed evidence of higher transmissibility and reduced neutralisation. On 15 June 2021,
7565-452: The virus to be detectable compared to 6 days with initially identified variants. Surveillance data from the U.S., Germany and the Netherlands in June and July 2021 indicated the Delta variant was growing by about a factor of 4 every two weeks with respect to the Alpha variant. In India, the United Kingdom, Portugal, Russia, Mexico, Australia, Indonesia, South Africa, Germany, Luxembourg,
7654-425: The virus. Another reason was that they identified 48 clusters of B.1.617.2, some of which revealed a degree of community transmission. With cases from the Delta variant having risen quickly, British scientists considered the Delta variant having overtaken the Alpha variant as the dominant variant of SARS-CoV-2 in the UK in early June 2021. Researchers at Public Health England later found that over 90% of new cases in
7743-656: Was designated a Variant Under Investigation in April 2021 by Public Health England . Later in April 2021, two other variants B.1.617.2 and B.1.617.3 were designated as Variants Under Investigation. While B.1.617.3 shares the L452R and E484Q mutations found in B.1.617.1, B.1.617.2 lacks the E484Q mutation. B.1.617.2 has the T478K mutation, not found in B.1.617.1 and B.1.617.3. Simultaneously, the ECDC released
7832-488: Was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021. The World Health Organization (WHO) indicated in June 2021 that the Delta variant was becoming the dominant strain globally. It has mutations in the gene encoding the SARS-CoV-2 spike protein causing the substitutions T478K, P681R and L452R , which are known to affect transmissibility of the virus as well as whether it can be neutralised by antibodies for previously circulating variants of
7921-423: Was removed from the Google Play Store and Apple App Store. The NZ COVID Tracer app allows users to scan official Ministry of Health QR codes at businesses, public buildings and other organisations to track where they have been, for contact tracing purposes. People can also register their contact tracing details on the official NZ COVID Tracer website. Information on people's movements will be stored for 60 days by
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