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The US CDC's COVID-19 laboratory test kit. COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2, the virus that cases COVID-19 and is responsible for the COVID-19 pandemic. The two main types of tests detect either the presence of the virus or antibodies produced in response to infection.
With a severe case of COVID-19, a person may experience weakness, lethargy, and fever for a prolonged period of time. However, in some cases, a person might not even show symptoms of having the ...
Woman taking a COVID test at home. Around this time four years ago, we started hearing about a "mysterious" new virus called COVID-19. The upper respiratory disease would change life as we knew it ...
COVID-19 rapid antigen tests or RATs, also frequently called COVID-19 lateral flow tests or LFTs, are rapid antigen tests used to detect SARS-CoV-2 infection . They are quick to implement with minimal training, cost a fraction of other forms of COVID-19 testing , and give users a result within 5–30 minutes.
Severe cases are most common in older adults (those older than 60 years, [73] and especially those older than 80 years). [100] Many developed countries do not have enough hospital beds per capita , which limits a health system 's capacity to handle a sudden spike in the number of COVID-19 cases severe enough to require hospitalisation. [ 101 ]
Being sick and experiencing a chronic cough, elevated fever, sore throat or a runny nose should prompt you to get a COVID-19 test to ensure you are not contagious. The COVID-19 FLiRT variant is ...
Symptoms of COVID-19. Some less common symptoms of COVID-19 can be relatively non-specific; however the most common symptoms are fever, dry cough, and loss of taste and smell. [1] [22] Among those who develop symptoms, approximately one in five may become more seriously ill and have difficulty in breathing.
None other than Dr. Anthony Fauci, the nation's leading infectious disease expert, has said he's "never seen a single virus" like COVID-19. One reason is that its symptoms take on so many forms ...