Scientists in Houston on Wednesday released a study of more than 5,000 genetic sequences of the coronavirus that reveals the virus’s continual accumulation of mutations, one of which may have made it more contagious.
The death toll in the United States from the coronavirus pandemic passed 200,000 on Tuesday as the first day of fall brought questions about what may be ahead.
More deaths have been announced in the United States than in any other country, and reports of new coronavirus cases have climbed in the U.S. and parts of Europe in recent days, suggesting an uncertain new phase in the crisis.
PARIS (Reuters) - Global airlines on Tuesday called for pre-departure COVID-19 testing for all international passengers to replace the quarantines they blame for exacerbating the travel slump.
