Nov. 7, 2022 – If you’re among the 92% or so of Americans yet to get a bivalent COVID-19 booster, here’s some news to consider. The Pfizer/BioNTech updated vaccine triggers a stronger immune response than a fourth dose of their original vaccine, the company says.
This evidence supports getting this Omicron-specific booster before a potential COVID-19 surge this winter.
The bivalent vaccine offers the strongest protection in people older than 55. One month after receiving a booster, those in this age group had four times more neutralizing antibodies against Omicron BA.4 and BA.5 subvariants than others who received the original vaccine as a booster.