Combine-and-match COVID boosters are nearly as good—if not higher than—all the identical photographs

Extreme close-up photo of a gloved hand holding a tiny jar.

Enlarge / A vial of the present Moderna COVID-19 vaccine. (credit score: Getty | Ivan Romano)

Mixing and matching COVID-19 vaccines for booster doses seems secure and as efficient—if no more efficient—than sticking with the identical vaccine for a booster dose. That is in response to preliminary knowledge posted on-line Wednesday from a medical trial run by the Nationwide Institutes of Well being.

The trial bolsters what some have lengthy hoped: that mixing and matching vaccines may present stronger, broader safety towards the pandemic virus and all its variants.

The trial was not giant sufficient to definitively point out which mixture of vaccines provides the perfect safety. And the early outcomes, out there on a preprint server, haven’t but been peer-reviewed. However the preliminary trial findings do trace that Moderna’s mRNA vaccine might supply the strongest safety throughout—backing up related findings from earlier vaccine-effectiveness research. The info additionally means that individuals who obtained the one-shot Johnson & Johnson vaccine might wish to get a lift with one of many two mRNA vaccines, both Moderna’s or Pfizer/BioNTech’s.

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