NIH Mix and Match Study Suggests mRNA COVID Vaccines May Offer Stronger Boost Than J&J

 
• By Sarah Karlin-Smith

Though not designed to facilitate inter-group comparisons, a preprint study of heterologous and homologous boosting with the three US available COVID-19 vaccines indicate Johnson and Johnson primary vaccines may get greater protection from an mRNA booster.

NIH National Institue of Allergy and Infectious Diseases building
FDA's vaccine advisors will hear a presentation on mixing and matching COVID-19 booster shots from NIAID on 15 October. • Source: Alamy

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