Experts explain why this particular strain is more likely to overcome immunity from vaccination or previous infection.

Scientists are reporting troubling signs that some recent mutations of the virus that causes COVID-19 may modestly curb the effectiveness of two current vaccines, although they stress that the shots ...

The COVID-19 variant BA.3.2, nicknamed "Cicada," has been detected in at least 23 countries and half the states in the U.S.

A new COVID-19 variant that some have dubbed the "Cicada" variant is quietly spreading across the globe, carrying an unusually high number of mutations that could help it slip past existing immunity, ...

RALEIGH, N.C. (WTVD) -- As new variants of SARS-CoV-2 emerge, a new study is giving insight into how COVID-19 surveillance programs can be used to design more effective annual vaccine boosters. "Now ...

While spring has officially begun, concerns about respiratory viruses are lingering longer than usual, with cases of ...

Add Yahoo as a preferred source to see more of our stories on Google. Gene sequencing of 27 nasal specimens taken from the man with the longest known case of COVID-19 revealed more than 50 mutations ...

The virus that causes COVID-19 is accumulating genetic mutations, one of which may have made it more contagious. The number of virus strains present in each zip code in Houston during the second wave ...

MONTGOMERY COUNTY, Va. (WRIC) – A study by researchers at Virginia Tech has found that the virus that causes COVID-19 is widespread among wildlife, creating the possibility of dangerous new mutations.