The neutralizing activity of all serum samples was tested against the B.1.429 variant and a variant of concern that first emerged in South Africa (B.1.351, also called 20H/501Y.V2). We compared this ...

In the absence of effective treatments for COVID-19, many countries have approved the therapeutic use of blood plasma from recovering patients because it contains antibodies against the coronavirus.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to evolve at a rapid pace, generating new variants that arouse concern. Variants that were first detected in California (B.1.429 ...