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Ramped-up sequencing efforts are helping to identify mutations that might boost transmission or help a virus evade immune responses.

Dr. Ho's team found that the SARS-CoV-2 virus is resistant to several neutralizing monoclonal antibodies and sera from vaccinees.

A new SARS-CoV-2 lineage that shares worrisome similarities is on the rise in New York City, according to a study by scientists at Columbia University Vagelos College of Physicians and Surgeons.

A new study of the U.K. and South Africa variants of SARS-CoV-2 predicts that current vaccines and certain monoclonal antibodies may be less effective at neutralizing these variants.