A team of British scientists released a worrying study on Wednesday of the new coronavirus variant sweeping the United Kingdom. They warned that the variant is so contagious that new control measures, including closing down schools and universities, might be necessary. Even that may not be enough, they noted, saying, “It may be necessary to greatly accelerate vaccine rollout.”

Nicholas Davies, the lead author of the study, said that the model should also serve as a warning to other countries where the variant may have already spread.

Continue reading “Coronavirus Variant Is Indeed More Transmissible, New Study Suggests” →

When Dr. Juan Aviles went to school in Puerto Rico, teachers taught him that the original people of the island, the Taino, vanished soon after Spain colonized it. Violence, disease and forced labor wiped them out, destroying their culture and language, the teachers said, and the colonizers repopulated the island with enslaved people, including Indigenous people from Central and South America and Africans.

But at home, Dr. Aviles heard another story. His grandmother would tell him that they were descended from Taino ancestors and that some of the words they used also descended from the Taino language.

Continue reading “Ancient DNA Shows Humans Settled Caribbean in 2 Distinct Waves” →

In recent days, the world has watched with curiosity and growing alarm as scientists in the U.K. have described a newly identified variant of the coronavirus that appears to be more contagious than, and genetically distinct from, more established variants. Initial studies of the new variant prompted Prime Minister Boris Johnson to tighten restrictions over Christmas, and spurred officials in the Netherlands, Germany and other European countries to ban travel from the U.K.

Continue reading “The U.K. Coronavirus Variant: What We Know” →

The coronavirus vaccine made by Moderna moved closer to authorization on Thursday, a significant step that would expand the reach of the nation’s vaccination campaign to rural areas and many more hospitals.

As the nation buckled from uncontrolled spread of the disease, with 3,611 deaths on Wednesday setting yet another horrific record, a panel of independent experts recommended,by a vote of 20 in favor and one abstention, that the Food and Drug Administration authorize the Moderna vaccine for emergency use. The formal decision, expected on Friday, would clear the way for some 5.9 million doses to be shipped around the country starting this weekend.

Continue reading “F.D.A. Panel Endorses Moderna’s Covid-19 Vaccine” →

WASHINGTON — The coronavirus vaccine made by Moderna is highly protective, according to new data released on Tuesday, setting the stage for its emergency authorization this week by federal regulators and the start of its distribution across the country.

The Food and Drug Administration intends to authorize emergency use of the vaccine on Friday, people familiar with the agency’s plans said. The decision would give millions of Americans access to a second coronavirus vaccine beginning as early as Monday. The Pfizer-BioNTech vaccine, cleared last week, was the first to be authorized.

Continue reading “Moderna Vaccine Is Highly Protective Against Covid-19, the F.D.A. Finds” →