US Coronavirus: The uncontrolled spread of Covid-19 increases the chances of a more dangerous variant emerging, said the former head of the CDC
Covid US: the California variant accounts for 52% of cases there, while the UK strain TRIPLES in Ohio
The UK variant can cause serious heart problems in pets; The Sinovac vaccine appears safe in children
The UK variant can cause serious heart problems in pets; The Sinovac vaccine appears safe in children