authorization for those despite limited available clinical data.

Last week, Pfizer-BioNTech and Moderna secured U.S. Food and Drug Administration insisted it was only interested in vaccines targeting BA.4/5. While existing coronavirus vaccines provide good protection against hospitalization and death, their effectiveness, particularly against infection, was reduced as the virus evolved.Įarlier this month, the EMA endorsed both Pfizer-BioNTech and Moderna’s MRNA.O vaccines updated for BA.1.ĮU officials signaled in recent months they were open to initially using boosters targeting the older BA.1 variant, given those specifically targeting the newer, now dominant Omicron BA.4/5 offshoots are further behind in development. If authorized, the BA.4/5-tailored booster will be available in days to all 27 EU member states, Pfizer said in a statement on Monday.

The final go-ahead will be subject to European Commission approval, which is expected to come shortly. The EMA recommendation is to authorize the retooled booster shots for people aged 12 and above who have received at least primary vaccination against COVID. The latest recommendation is for a so-called bivalent vaccine developed by Pfizer PFE.N and BioNTech 22UAy.DE, which targets BA.4/5 as well as the strain of the virus that originally emerged in China in December 2019 targeted by earlier COVID vaccines. The European Medicines Agency (EMA) on Monday recommended a COVID-19 booster designed to combat the currently circulating Omicron BA.4/5 subvariants, days after endorsing a pair of boosters tailored to target the older BA.1 Omicron variant.

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