Misplaced Pages

#976023

73-712: The corresponding competition for junior-level skaters is the World Junior Championships . The corresponding competition for senior-level synchronized skating is the World Synchronized Skating Championships and for junior level the World Junior Synchronized Skating Championships . The Internationale Eislauf-Vereinigung ( International Skating Union ) formed in 1892 to govern international competition in speed and figure skating. The first championship, known as

146-625: A healthy diet are also recommended. Supportive care in severe cases includes treatment to relieve symptoms , fluid therapy , oxygen support and prone positioning , and medications or devices to support other affected vital organs. More severe cases may need treatment in hospital. In those with low oxygen levels, use of the glucocorticoid dexamethasone is recommended to reduce mortality. Noninvasive ventilation and, ultimately, admission to an intensive care unit for mechanical ventilation may be required to support breathing. Extracorporeal membrane oxygenation (ECMO) has been used to address

219-615: A variant of concern (VoC) or a variant of interest (VoI). Many of these variants have shared the more infectious D614G . As of May 2023, the WHO had downgraded all variants of concern to previously circulating as these were no longer detected in new infections. Sub-lineages of the Omicron variant (BA.1 – BA.5) were considered separate VoCs by the WHO until they were downgraded in March 2023 as no longer widely circulating. As of 24 September 2024 ,

292-493: A comprehensive international study. Such deaths include deaths due to healthcare capacity constraints and priorities, as well as reluctance to seek care (to avoid possible infection). Further research may help distinguish the proportions directly caused by COVID-19 from those caused by indirect consequences of the pandemic. In May 2022, the WHO estimated the number of excess deaths by the end of 2021 to be 14.9 million compared to 5.4 million reported COVID-19 deaths, with

365-415: A designated age range compete for the titles of World Junior Champion. The ISU guidelines for junior eligibility have varied throughout the years – currently, skaters must be at least 13 years old but not yet 19 before the previous 1 July, except for men competing in pair skating and ice dancing where the age maximum is 21. This event is one of the four annual ISU figure skating championship events and

438-590: A large number of people". During the COVID-19 pandemic, as with other pandemics, the meaning of this term has been challenged. The end of a pandemic or other epidemic only rarely involves the total disappearance of a disease, and historically, much less attention has been given to defining the ends of epidemics than their beginnings. The ends of particular epidemics have been defined in a variety of ways, differing according to academic field, and differently based on location and social group. An epidemic's end can be considered

511-448: A median range of 0.24% to 1.49%. IFRs rise as a function of age (from 0.002% at age 10 and 0.01% at age 25, to 0.4% at age 55, 1.4% at age 65, 4.6% at age 75, and 15% at age 85). These rates vary by a factor of ≈10,000 across the age groups. For comparison, the IFR for middle-aged adults is two orders of magnitude higher than the annualised risk of a fatal automobile accident and much higher than

584-540: A new rule that allowed no more than one judge per country on the panel. The 1930 Championships in New York City were the first to be held outside Europe and combined all three competitions into one event for the first time. Ice dance entered the program officially in 1952. Until 1959, national teams were allowed to field multiple competitors in each discipline; for example the United Kingdom entered six skaters in

657-815: A random sample have consistently found that total infections considerably exceed the reported case counts. Many countries, early on, had official policies to not test those with only mild symptoms. The strongest risk factors for severe illness are obesity, complications of diabetes , anxiety disorders, and the total number of conditions. During the start of the COVID-19 pandemic it was not clear whether young people were less likely to be infected, or less likely to develop symptoms and be tested. A retrospective cohort study in China found that children and adults were just as likely to be infected. Among more thorough studies, preliminary results from 9 April 2020 found that in Gangelt ,

730-494: A second or third entry. If a country has only one entry, that skater/team must place in the top ten to earn a second entry and in the top two to earn three entries to next year's championships. If a country has two or three entries, their combined placement (best two) must be 28 or less to keep two entries for their country, and 13 or fewer to qualify three entries. All skaters who qualify for the free segment but place 16th or lower receive 16 placement points. All skaters who compete in

803-457: A social phenomenon, not just a biological one. Time reported in March 2024 that expert opinions differ on whether or not COVID-19 is considered endemic or pandemic, and that the WHO continued to call the disease a pandemic on its website. During the initial outbreak in Wuhan , the virus and disease were commonly referred to as "coronavirus", "Wuhan coronavirus", "the coronavirus outbreak" and

SECTION 10

#1732884572977

876-451: A test. Conversely, deaths of people who died from underlying conditions following a positive test may be included. Countries such as Belgium include deaths from suspected cases, including those without a test, thereby increasing counts. Official death counts have been claimed to underreport the actual death toll, because excess mortality (the number of deaths in a period compared to a long-term average) data show an increase in deaths that

949-518: Is associated with COVID-19 and is reported in as many as 88% of cases. The disease is mainly transmitted via the respiratory route when people inhale droplets and small airborne particles (that form an aerosol ) that infected people exhale as they breathe, talk, cough, sneeze, or sing. Infected people are more likely to transmit COVID-19 when they are physically close to other non-infected individuals. However, infection can occur over longer distances, particularly indoors. SARS‑CoV‑2 belongs to

1022-600: Is discouraged altogether by the World Health Organization (WHO), due to limited evidence of its efficacy. The severity of COVID-19 varies. It may take a mild course with few or no symptoms, resembling other common upper respiratory diseases such as the common cold . In 3–4% of cases (7.4% for those over age 65) symptoms are severe enough to cause hospitalisation. Mild cases typically recover within two weeks, while those with severe or critical diseases may take three to six weeks to recover. Among those who have died,

1095-439: Is intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 ( COVID-19 ). Prior to the COVID-19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS). This knowledge accelerated

1168-485: Is not explained by COVID-19 deaths alone. Using such data, estimates of the true number of deaths from COVID-19 worldwide have included a range from 18.2 to 33.5 million (≈27.4 million) by 18 November 2023 by The Economist , as well as over 18.5 million by 1 April 2023 by the Institute for Health Metrics and Evaluation and ≈18.2 million (earlier) deaths between 1 January 2020, and 31 December 2021, by

1241-452: Is the ratio of deaths to diagnoses. This metric can be misleading because of the delay between symptom onset and death and because testing focuses on symptomatic individuals. Based on Johns Hopkins University statistics, the global CFR was 1.02 percent (6,881,955 deaths for 676,609,955 cases) as of 10 March 2023. The number varies by region and has generally declined over time. Several variants have been named by WHO and labelled as

1314-406: Is the seventh known coronavirus to infect people, after 229E , NL63 , OC43 , HKU1 , MERS-CoV , and the original SARS-CoV . The standard method of testing for presence of SARS-CoV-2 is a nucleic acid test , which detects the presence of viral RNA fragments. As these tests detect RNA but not infectious virus, its "ability to determine duration of infectivity of patients is limited." The test

1387-614: Is typically done on respiratory samples obtained by a nasopharyngeal swab ; however, a nasal swab or sputum sample may also be used. The WHO has published several testing protocols for the disease. Preventive measures to reduce the chances of infection include getting vaccinated, staying at home or spending more time outdoors, avoiding crowded places, keeping distance from others, wearing a mask in public, ventilating indoor spaces, managing potential exposure durations, washing hands with soap and water often and for at least twenty seconds, practising good respiratory hygiene, and avoiding touching

1460-501: The Huanan Seafood Wholesale Market there, but it is possible that human-to-human transmission began earlier. Molecular clock analysis suggests that the first cases were likely to have been between October and November 2019. The scientific consensus is that the virus is most likely of a zoonotic origin, from bats or another closely related mammal. While other explanations such as speculations that SARS-CoV-2

1533-541: The ISU Championships . For example, Sarah Hughes from the United States ( 2002 Olympic champion in women's singles) won silver medal at the 1999 World Junior Championships and thus was allowed to participate at the 1999 World Championships at the age of 13. That exception lasted through the 1999–2000 season, which was also the first season that Junior Worlds were moved from November-December to early March. At

SECTION 20

#1732884572977

1606-627: The ISU Congress held in Phuket , Thailand , in June 2022, members of the ISU Council accepted a proposal to gradually increase the minimum age limit for senior competition to 17 years old beginning from the 2024–25 season. To avoid forcing skaters who had already competed in the senior category to return to juniors, the age limit remained unchanged during the 2022–23 season, before increasing to 16 years old during

1679-407: The Institute for Health Metrics and Evaluation estimating the true number of cases as of early 2022 to be in the billions. One measure that public health officials and policymakers have used to monitor the pandemic and guide decision-making is the test positivity rate ("percent positive"). According to Johns Hopkins in 2020, one benchmark for a "too high" per cent positive is 5%, which was used by

1752-597: The basic reproduction number (R 0 ) for COVID-19 in January 2020 were between 1.4 and 2.5, but a subsequent analysis claimed that it may be about 5.7 (with a 95 per cent confidence interval of 3.8 to 8.9). In December 2021, the number of cases continued to climb due to several factors, including new COVID-19 variants. As of that 28   December, 282,790,822 individuals worldwide had been confirmed as infected. As of 14 April 2022 , over 500 million cases were confirmed globally. Most cases are unconfirmed, with

1825-474: The variants of interest as specified by the World Health Organization are BA.2.86 and JN.1, and the variants under monitoring are JN.1.7, KP.2, KP.3, KP.3.1.1, JN.1.18, LB.1, and XEC. Symptoms of COVID-19 are variable, ranging from mild symptoms to severe illness. Common symptoms include headache, loss of smell and taste , nasal congestion and runny nose , cough, muscle pain , sore throat , fever, diarrhoea , and breathing difficulties . People with

1898-602: The "World Junior Figure Skating Championships", and held once again in Megève, France. Since then, the location has changed each year. From its inception until 1980, the World Junior Championships were held in the spring. In 1981, the timing was changed to the November or December of the previous calendar year. In 2000, the timing was changed back to its previous form and the World Junior Championships were once again held in

1971-429: The "Wuhan coronavirus outbreak", with the disease sometimes called "Wuhan pneumonia ". In January 2020, the WHO recommended 2019-nCoV and 2019-nCoV acute respiratory disease as interim names for the virus and disease per 2015 international guidelines against using geographical locations (e.g. Wuhan, China), animal species, or groups of people in disease and virus names in part to prevent social stigma . WHO finalised

2044-773: The 2010 Junior Worlds, skaters had to be at least 13 and younger than 19 (or 21) by 1 July 2009. A skater must turn 13 before 1 July in their place of birth, e.g. Adelina Sotnikova was born a few hours into 1 July 1996 in Moscow and was not eligible to compete at the 2010 event. COVID-19 pandemic The COVID-19 pandemic (also known as the coronavirus pandemic and COVID pandemic ), caused by severe acute respiratory syndrome coronavirus 2 ( SARS-CoV-2 ), began with an outbreak of COVID-19 in Wuhan , China, in December 2019. It spread to other areas of Asia, and then worldwide in early 2020. The World Health Organization (WHO) declared

2117-497: The 2023–24 season, and then will increase to 17 years old during the 2024–25 season. Since 2010, only skaters who have reached minimum technical elements scores (TES) in the short and free programs at a prior international event are allowed to compete at the World Championships. The short and free scores may be attained at different international events in the ongoing or preceding season. After an ISU congress voted to eliminate

2190-588: The Championship of the Internationale Eislauf-Vereingung, was held in Saint Petersburg , Russia , in 1896. There were four competitors and the winner of the event was Gilbert Fuchs . The championships were presumed all-male since competitive skating was generally viewed as a male sport. However, there were no specific rules regarding the gender of competitors. In 1902, Madge Syers entered

2263-423: The United States ( 1998 Olympic champion in women's singles who debuted at the World Championships in 1996 at the age of 13) was allowed to participate at the 1997 World Championships where she won gold medal at the age of 14. That exception expired naturally after couple of seasons. There was also an exception that skaters who had won medals at the World Junior Championships were eligible to compete as seniors at

World Figure Skating Championships - Misplaced Pages Continue

2336-636: The WHO in the past. As of 10 March 2023, more than 6.88   million deaths had been attributed to COVID-19. The first confirmed death was in Wuhan on 9 January 2020. These numbers vary by region and over time, influenced by testing volume, healthcare system quality, treatment options, government response, time since the initial outbreak, and population characteristics, such as age, sex, and overall health. Multiple measures are used to quantify mortality. Official death counts typically include people who died after testing positive. Such counts exclude deaths without

2409-419: The WHO, US, European Union, and Australia. On 12 November 2022, the WHO released its Global Vaccine Market Report. The report indicated that "inequitable distribution is not unique to COVID-19 vaccines"; countries that are not economically strong struggle to obtain vaccines. On 14 November 2022, the first inhalable vaccine was introduced, developed by Chinese biopharmaceutical company CanSino Biologics , in

2482-504: The World Championships if they represent a member nation of the International Skating Union and are selected by their federation. Pairs and ice dance partnerships composed of skaters of different nationalities are not allowed to compete under two flags; they are required to choose one country and obtain the other country's permission. Member nations select their entries according to their own criteria. Some countries rely on

2555-524: The World Championships in 1924 , at the age of 11. In mid-1990s International Skating Union (ISU) imposed age limits in order to protect young athletes from serious injuries, especially in women's singles and pair skating. Starting from 1996–97 season, skaters had to be at least 15 years old before July 1 of the previous year. However, there were some exceptions during few following seasons. One exception allowed those who already had skated in senior events to stay at that level. Most notably, Tara Lipinski from

2628-448: The broad family of viruses known as coronaviruses . It is a positive-sense single-stranded RNA (+ssRNA) virus, with a single linear RNA segment. Coronaviruses infect humans, other mammals, including livestock and companion animals, and avian species. Human coronaviruses are capable of causing illnesses ranging from the common cold to more severe diseases such as Middle East respiratory syndrome (MERS, fatality rate ≈34%). SARS-CoV-2

2701-630: The centre of a major infection cluster in Germany, 15 per cent of a population sample tested positive for antibodies . Screening for COVID-19 in pregnant women in New York City , and blood donors in the Netherlands, found rates of positive antibody tests that indicated more infections than reported. Seroprevalence -based estimates are conservative as some studies show that persons with mild symptoms do not have detectable antibodies. Initial estimates of

2774-414: The championships and won the silver medal. The 1903 ISU Congress considered gender issues, but passed no new rules. The 1905 ISU Congress established a second-class ladies' competition called the "ISU Championships" rather than the "World Championships", and winners were to be known as ISU champions and not world champions. Men's and ladies' events were normally held separately. The first ladies' competition

2847-746: The city of Shanghai, China. For the first two years of the pandemic, no specific and effective treatment or cure was available. In 2021, the European Medicines Agency's (EMA) Committee for Medicinal Products for Human Use (CHMP) approved the oral antiviral protease inhibitor , Paxlovid (nirmatrelvir plus the HIV antiviral ritonavir ), to treat adult patients. FDA later gave it an EUA. Most cases of COVID-19 are mild. In these, supportive care includes medication such as paracetamol or NSAIDs to relieve symptoms (fever, body aches, cough), adequate intake of oral fluids and rest. Good personal hygiene and

2920-632: The competition's history: from 1915 through 1921 due to World War I ; from 1940 through 1946 due to World War II ; in 1961 as a result of the loss of the entire U.S. Figure Skating team in the crash of Sabena Flight 548 ; and in 2020 due to the COVID-19 pandemic . The 2011 Championships , originally due to be held in Tokyo, Japan , were considered for cancellation after the Japan earthquake and tsunami , but were instead moved to Moscow, Russia . Skaters may compete at

2993-539: The country's skaters (top two if they have three). Entries do not carry over and so countries must continue to earn their second or third spot every year. If a country only has one skater/team, that skater/team must place in the top ten to earn a second entry and in the top two to earn three entries to next year's championships. If a country has two skaters/teams, the combined placement of those teams must be 13 or less to qualify 3 entries, and 28 or less to keep their two entries. If they do not do so, they only have one entry for

World Figure Skating Championships - Misplaced Pages Continue

3066-480: The cumulative number of infected individuals (including asymptomatic and undiagnosed infections and excluding vaccinated infected individuals). It is expressed in percentage points. Other studies refer to this metric as the infection fatality risk . In November 2020, a review article in Nature reported estimates of population-weighted IFRs for various countries, excluding deaths in elderly care facilities, and found

3139-441: The development of various vaccine platforms during early 2020. The initial focus of SARS-CoV-2 vaccines was on preventing symptomatic and severe illness. The COVID-19 vaccines are widely credited for their role in reducing the severity and death caused by COVID-19. As of March 2023, more than 5.5 billion people had received one or more doses (11.8 billion in total) in over 197 countries. The Oxford-AstraZeneca vaccine

3212-513: The eyes, nose, or mouth with unwashed hands. Those diagnosed with COVID-19 or who believe they may be infected are advised by healthcare authorities to stay home except to get medical care, call ahead before visiting a healthcare provider, wear a face mask before entering the healthcare provider's office and when in any room or vehicle with another person, cover coughs and sneezes with a tissue, regularly wash hands with soap and water and avoid sharing personal household items. A COVID-19 vaccine

3285-438: The following year. Which skaters from each country attend the World Junior Championships is at the national governing body's discretion. Some countries rely on the results of their national championships while others have more varied criteria. Selections vary by country. Skaters must be older than 13 and less than 19 (or less than 21 for male pair skaters and ice dancers) by 1 July of the previous year. For example, to compete at

3358-474: The general public beginning in December 2020, made available through government and international programs such as COVAX , aiming to provide vaccine equity . Treatments include novel antiviral drugs and symptom control. Common mitigation measures during the public health emergency included travel restrictions , lockdowns , business restrictions and closures, workplace hazard controls , mask mandates , quarantines, testing systems, and contact tracing of

3431-547: The host country and were often native. At the 1927 ladies' event in Oslo, Norway , three of the five judges were Norwegian; these three judges awarded first place to Norwegian competitor Sonja Henie , while the Austrian and German judges placed defending champion Herma Szabo first. The controversial result stood, giving Henie her first world title, but the controversy led to the ISU introducing

3504-657: The infected. The pandemic caused severe social and economic disruption around the world, including the largest global recession since the Great Depression . Widespread supply shortages , including food shortages , were caused by supply chain disruptions and panic buying . Reduced human activity led to an unprecedented temporary decrease in pollution . Educational institutions and public areas were partially or fully closed in many jurisdictions, and many events were cancelled or postponed during 2020 and 2021. Telework became much more common for white-collar workers as

3577-484: The issue of respiratory failure. Existing drugs such as hydroxychloroquine , lopinavir/ritonavir , and ivermectin are not recommended by US or European health authorities, as there is no good evidence they have any useful effect. The antiviral remdesivir is available in the US, Canada, Australia, and several other countries, with varying restrictions; however, it is not recommended for use with mechanical ventilation, and

3650-441: The ladies' singles competition in 1948 , and five skaters represented the United States in each singles discipline in 1951 . Beginning in 1960, the number of participants per country was limited to a maximum of three per discipline. In 1967, all events at the World Championships, other than compulsory figures and ice dance, were held indoors. Compulsory figures were removed from the World Championships in 1991. The 6.0 system

3723-576: The majority of the unreported 9.5 million deaths believed to be direct deaths due the virus, rather than indirect deaths. Some deaths were because people with other conditions could not access medical services . A December 2022 WHO study estimated excess deaths from the pandemic during 2020 and 2021, again concluding ≈14.8 million excess early deaths occurred, reaffirming and detailing their prior calculations from May as well as updating them, addressing criticisms. These numbers do not include measures like years of potential life lost and may make

SECTION 50

#1732884572977

3796-500: The most prestigious international one for juniors. Medals are awarded in the disciplines of men's singles, women's singles , pair skating , and ice dancing . The first World Junior Championships were held in March 1976 in Megève , France, and were originally named the "ISU Junior Figure Skating Championships". In 1977 the championships were held again under the same name at the same place. In 1978 these championships were officially renamed

3869-495: The official names COVID-19 and SARS-CoV-2 on 11 February 2020. Tedros Adhanom Ghebreyesus explained: CO   for corona , VI   for virus , D   for disease and 19 for when the outbreak was first identified (31 December 2019). WHO additionally uses "the COVID-19 virus" and "the virus responsible for COVID-19" in public communications. WHO named variants of concern and variants of interest using Greek letters . The initial practice of naming them according to where

3942-534: The outbreak a public health emergency of international concern (PHEIC) on 30 January 2020, and assessed the outbreak as having become a pandemic on 11 March. COVID-19 symptoms range from asymptomatic to deadly, but most commonly include fever, sore throat , nocturnal cough , and fatigue. Transmission of the virus is often through airborne particles . Mutations have produced many strains (variants) with varying degrees of infectivity and virulence . COVID-19 vaccines were developed rapidly and deployed to

4015-407: The pandemic 2021's leading cause of death . The time between symptom onset and death ranges from   6 to 41 days, typically about 14 days. Mortality rates increase as a function of age. People at the greatest mortality risk are the elderly and those with underlying conditions. The infection fatality ratio (IFR) is the cumulative number of deaths attributed to the disease divided by

4088-491: The pandemic evolved. Misinformation circulated through social media and mass media , and political tensions intensified . The pandemic raised issues of racial and geographic discrimination , health equity , and the balance between public health imperatives and individual rights . The WHO ended the PHEIC for COVID-19 on 5 May 2023. The disease has continued to circulate, but as of 2024, experts were uncertain as to whether it

4161-415: The population's age structure and the age-specific pattern of infections. There have also been reviews that have compared the fatality rate of this pandemic with prior pandemics, such as MERS-CoV. For comparison the infection mortality rate of seasonal flu in the United States is 0.1%, which is 13 times lower than COVID-19. Another metric in assessing death rate is the case fatality ratio (CFR), which

4234-582: The qualifying rounds, the TES minimums were raised for the 2013 World Championships . Because of the large number of entries at the World Championships, in some years the event included qualifying rounds for men and ladies. After the 2006 championships in Calgary , Canada , the ISU Congress voted to eliminate the qualifying round. It was later reintroduced and then eliminated again after the 2012 World Championships. After

4307-513: The results of their national championships while others have more varied criteria, which may include success at certain international events or specific technical requirements. All of the selected skaters must meet the ISU's age and TES requirements. Age restrictions have changed throughout the history of the World Championships. Originally there were no any age restrictions at all. For example, Sonja Henie of Norway (three-time Olympic champion and ten-time World champion in women's singles) debuted at

4380-458: The risk of dying from seasonal influenza . In December 2020, a systematic review and meta-analysis estimated that population-weighted IFR was 0.5% to 1% in some countries (France, Netherlands, New Zealand, and Portugal), 1% to 2% in other countries (Australia, England, Lithuania, and Spain), and about 2.5% in Italy. This study reported that most of the differences reflected corresponding differences in

4453-496: The same infection may have different symptoms, and their symptoms may change over time. Three common clusters of symptoms have been identified: one respiratory symptom cluster with cough, sputum , shortness of breath, and fever; a musculoskeletal symptom cluster with muscle and joint pain, headache, and fatigue; a cluster of digestive symptoms with abdominal pain, vomiting, and diarrhoea. In people without prior ear, nose, and throat disorders, loss of taste combined with loss of smell

SECTION 60

#1732884572977

4526-414: The short program, the top 24 single skaters and top 20 pairs advance to the free skate. In ice dance, the top 30 teams in the compulsory dance advanced to the original dance , and the top 24 after that segment advanced to the free dance . Each national federation is entitled to send one entry per discipline. Depending on their results at the previous year's competition, some countries are allowed to send

4599-406: The short segment but do not qualify for the free receive 18 placement points. There are exceptions if skaters are forced to withdraw in the middle of the competition due to a medical emergency or equipment problems – they are not considered as entered for the purpose of entry quotas' determination for next year's competition if they did not start or finish the free segment, but were among the top 10 in

4672-408: The short segment. Entries do not carry over and so countries must continue to earn their second or third spot every year. World Junior Figure Skating Championships The World Junior Figure Skating Championships , commonly referred to as "World Juniors" or "Junior Worlds", are annual figure skating competitions sanctioned by the International Skating Union in which figure skaters within

4745-412: The spring. Skaters qualify for the World Junior Championships by belonging to an ISU member nation . Each country is allowed one entry in every discipline by default. The most entries a country can have in a single discipline is three. Countries earn a second or third entry for the following year's competition by earning points through skater placement. The points are equal to the sum of the placements of

4818-411: The time from symptom onset to death has ranged from two to eight weeks. Prolonged prothrombin time and elevated C-reactive protein levels on admission to the hospital are associated with severe course of COVID-19 and with a transfer to intensive care units (ICU). Between 5% and 50% of COVID-19 patients experience long COVID , a condition characterised by long-term consequences persisting after

4891-694: The typical convalescence period of the disease. The most commonly reported clinical presentations are fatigue and memory problems, as well as malaise , headaches, shortness of breath , loss of smell, muscle weakness , low fever and cognitive dysfunction . Many countries attempted to slow or stop the spread of COVID-19 by recommending, mandating or prohibiting behaviour changes, while others relied primarily on providing information. Measures ranged from public advisories to stringent lockdowns. Outbreak control strategies are divided into elimination and mitigation. Experts differentiate between elimination strategies (known as " zero-COVID ") that aim to completely stop

4964-543: The variants were identified (e.g. Delta began as the " Indian variant") is no longer common. A more systematic naming scheme reflects the variant's PANGO lineage (e.g., Omicron 's lineage is B.1.1.529) and is used for other variants. SARS-CoV-2 is a virus closely related to bat coronaviruses , pangolin coronaviruses, and SARS-CoV . The first known outbreak (the 2019–2020 COVID-19 outbreak in mainland China ) started in Wuhan , Hubei, China, in December 2019. Many early cases were linked to people who had visited

5037-443: Was accidentally released from a laboratory have been proposed, as of 2021 these were not supported by evidence. Official "case" counts refer to the number of people who have been tested for COVID-19 and whose test has been confirmed positive according to official protocols whether or not they experienced symptomatic disease. Due to the effect of sampling bias , studies which obtain a more accurate number by extrapolating from

5110-527: Was held in Davos, Switzerland , in 1906; the event was won by Syers. The first pair skating competition was held in Saint Petersburg in 1908, despite pairs competition being illegal in some countries and considered indecent. Early championships for both ladies and pairs, previously titled "ISU Championships", were retroactively given World Championship status in 1924. In the early years, judges were invited by

5183-457: Was still a pandemic. Pandemics and their ends are not well-defined, and whether or not one has ended differs according to the definition used. As of 24 November 2024, COVID-19 has caused 7,075,455 confirmed deaths. The COVID-19 pandemic ranks as the fifth- deadliest pandemic or epidemic in history . In epidemiology , a pandemic is defined as "an epidemic occurring over a very wide area, crossing international boundaries, and usually affecting

5256-445: Was the most widely used. According to a June 2022 study, COVID-19 vaccines prevented an additional 14.4 million to 19.8 million deaths in 185 countries and territories from 8 December 2020 to 8 December 2021. On 8 November 2022, the first recombinant protein-based COVID-19 vaccine (Novavax's booster Nuvaxovid ) was authorised for use in adults in the United Kingdom. It has subsequently received endorsement/authorisation from

5329-650: Was used for judging up to and including the 2004 event, after which the ISU Judging System was instituted. Every four years, because the World Championships take place around a month after the Winter Olympics , a large proportion of Olympic medalists tend to be absent from the competition. Many skaters need time to rest due to physical and mental exhaustion, and some Olympic medalists choose to cash in on their recent success by turning professional. The World Figure Skating Championships have been cancelled 16 times in

#976023