XFG, dubbed “American COVID,” is spreading globally, with reports linking the variant to a distinctive hoarse or croaky voice ...

The COVID-19 variant picture is shifting again, with one widely circulating strain drawing attention for an unusual symptom.

From Stratus to Cicada, several variants are on the radar as COVID-19 activity rises, impacting how the virus spreads, its ...

Most covid-19 cases are caused by a particular type of variants, but do we need to worry every time a new one emerges?

Discover the top stories from Oct. 10 to Oct. 16, 2026, including what COVID-19 variants scientists are currently tracking ...

A new COVID-19 variant is driving infections in parts of the world with cases reported in 22 countries. According to the ...

The resurgence of Covid-19 cases observed in recent weeks is in line with the waves the virus causes every year and, according to Francesco Broccolo, should neither surprise nor alarm.

Three months after Virginia confirmed its first case of a COVID-19 variant, at least 965 of the state’s 652,321 coronavirus ...

The fast-spreading UK, South Africa, and Brazil coronavirus variants are raising both concerns and questions about whether COVID-19 vaccines will protect against them. New work led by Bing Chen, Ph.D.

Omicron, the newest coronavirus variant, was also the quickest to be labeled a "variant of concern" by the World Health Organization and the US Centers for Disease Control and Prevention because of ...

XFG accounted for around 69% of variants identified in primary care and 65% of hospital samples in Spain. The country is also ...