variants

The Sinovac vaccine works in the United Kingdom, South African variants

EU welcomes agreements to obtain more vaccines, fight variants

The third shot may be necessary to fight new variants, warns Bill Gates

The third injection may be needed to fight new variants of the coronavirus, says Bill Gates

The US reported almost 1,300 infections with Covid-19 variants

United Kingdom and California Covid variants ‘merged into mutant viruses’

Administrator Biden hurries to close the virus sequencing gap as the variants spread

How the US can respond to coronavirus variants

Covid-19 aide to the White House says the drop in US cases could be “misleading” in the face of variants

Scientists discover 7 new variants of coronavirus at locations in the U.S.

Covid-19 vaccines can be adjusted if variants worsen

Amid the coronavirus variants, the United States is not yet ‘out of danger’, warns the expert: ‘There are more surprises to come’