Flu, COVID-19, the common cold and RSV have similarities, but they differ in their severity, contagiousness and symptoms.
A person's immune response to variants of SARS-CoV-2, the virus that causes COVID-19, depends on their previous exposure - and differences in the focus of immune responses will help scientists ...
Some viruses move between species. For example, SARS-CoV-2, the virus that causes COVID-19, can spill over from humans to mink, an agricultural species, and then spill back from mink to humans. Spill ...
Approximately 15 to 20 million Americans who have acquired COVID-19 experience persistent symptoms lasting over 3 months (long-COVID). Respiratory symptoms of long-COVID include breathlessness, ...
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