The Updated COVID-19 Shot Works on the Newest Variants

Every COVID-19 vaccine is a step behind the virus. In the time it takes companies to make the shot, SARS-CoV-2 is already busy mutating into different versions that can evade the immune response produced by it.

But even though the latest vaccine targets XBB.1.5, a variant no longer dominant in the U.S., it seems to be doing a decent job at warding off some of the emerging variants. In a study published on the preprint server bioRxiv, scientists led by Dr. David Ho, director of the Aaron...