SAN FRANCISCO -- Infectious diseases experts are keeping a close eye on multiple COVID-19 variants that have resulted in a spike in cases in both Europe and Asia. For several weeks, experts have ...

A groundbreaking study explains why certain COVID-19 vaccines caused dangerous blood clots, hemorrhages and VITT syndrome, ...

GENEVA — The World Health Organization said European nations reported more than 700,000 new coronavirus cases last week — the highest-ever figure since the start of the pandemic. In a weekly briefing ...

NEW YORK -- New research suggests that the new coronavirus arrived in New York weeks before the first confirmed case and likely came from Europe, not China. This research would confirm what many had ...

BRUSSLES -- The European Union announced Tuesday that it will reopen its borders to travelers from 14 countries, and possibly China soon, but most Americans have been refused entry for at least ...

A croaky voice and a sharp, 'razor blade' sore throat are emerging as telltale signs of the latest Covid variants now sweeping Britain and the US. The strains — XFG, dubbed Stratus, and NB.1.8.1, ...

France has reported its first cases of the potentially fatal Middle East Respiratory Syndrome (MERS) in over a decade, sparking concerns about emerging infectious diseases across a continent still ...