
The European Medicines Agency (EMA) on Monday recommended a COVID-19 booster designed to combat Omicron offshoots BA.4/5, days after endorsing a pair of boosters tailored to target the older BA.1 variant.
The latest recommendation is for a so-called bivalent vaccine developed by Pfizer and BioNTech, which targets BA.4/5 as well as the strain of the virus that originally emerged in China in December 2019.