LONDON – A fourth COVID-19 vaccine is on the road to approval in Europe, with Novavax Inc. announcing positive interim data from the phase III U.K. trial of NVX-CoV2373. The vaccine was 89.3% effective at a time when there was a high rate of infection in the country, and in the face of the newly identified variant, B 1.1.7, which is more transmissible. There also was positive data, though slightly less sparkly, from a phase IIb study in South Africa, where NVX-CoV2373 showed 60% efficacy in preventing mild, moderate and severe COVID-19 disease.

Swift Biosciences Inc. released an S gene panel for SARS-CoV-2 that covers 100% of the gene even with minimal viral titers. The S gene controls the spike protein, which enables the virus to bind to cells and affects transmissibility, and has accumulated multiple mutations in the concerning variants recently discovered in the U.K., South Africa, Brazil, Denmark and the U.S. The panel is expected to enable rapid scaling of surveillance efforts of the new strains and can be run by any lab using the Illumina system.