The coronavirus variant that shut down much of the United Kingdom is spreading rapidly across the United States, outcompeting other strains and doubling its prevalence among confirmed infections every week and a half, according to new research made public Sunday.
The report, posted on the preprint server MedRxiv and not yet peer-reviewed or published in a journal, comes from a collaboration of many scientists and provides the first hard data to support a forecastissued last month by the Centers for Disease Control and Prevention that showed the variant becoming dominant in the United States by late March.
The spread of the variant, officially known as B.1.1.7, and the threat of other mutant strains of the virus, have added urgency to the effort to vaccinate as many people as possible as quickly as possible. The variant is more contagious than earlier forms of the coronavirus and may also be more lethal, although that is far less certain. Continue reading.