CDC: If you got J&J's vaccine and booster, consider an mRNA shot now - The Washington Post

Combining single-dose shot with Pfizer, Moderna boosters offers best protection against severe covid, study shows.

Even combining a Johnson & Johnson vaccine with a booster of either Johnson & Johnson, or one of the two messenger RNA vaccines, wasnt as strong as three shots of the messenger RNA vaccines i… [+7355 chars]

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