The longevity of SARS-CoV-2 antibodies and their cross-neutralization against variants of concern

In a new study by researchers in the UK, the activity of neutralizing antibodies collected from the sera of individuals that contracted COVID-19 during the first wave of the pandemic is tested against variants of concern the B.1.1.7 (or UK) variant and the B.1.351 (or South African) variant, demonstrating somewhat reduced potency of neutralization towards these strains.