Prognosis
J&J Vaccine Recipients Seek mRNA Booster Without CDC Backing
- U.S. health officials warn against mixing-and-matching shots
- Twitter-scrolling J&J vaccine recipients pursue their own path
A person receives a dose of the Johnson & Johnson Janssen Covid-19 vaccine in New York, U.S.
Photographer: Angus Mordant/BloombergThis article is for subscribers only.
Some people who received the Johnson & Johnson Covid-19 shot in the U.S. are seeking out added doses of a messenger-RNA vaccine, fearing their initial inoculation won’t protect them from the virus.
Demand for the one-and-done J&J shot has suffered in part due to the perception that it’s inferior to the two-dose mRNA vaccines that showed higher efficacy in clinical trials. But it is unclear if mixing vaccines will safely increase protection, and there are fresh signs that J&J’s shot is a strong shield against variants.