LOS ANGELES - Worrisome new variants of the coronavirus have been detected in both California and New York and are spreading rapidly, according to researchers — fueling concerns that emerging and possibly more contagious strains could hinder the recent downward trend of cases in the country.
One variant in New York City, called B.1.526, was first detected in late November 2020. By mid-February, it appeared in roughly 25% of the coronavirus genomes sequenced and entered into a database shared by researchers.
Information about B.1.526 was shared in a pair of recent studies that have yet to be peer-reviewed.One study, published Feb.