The San Francisco Department of Public Health is offering a “supplemental dose” in the form of an mRNA vaccine to any J&J recipient who wants it. This is a game changer, as a SF hospital is the first in the nation to do it.
I received the J&J shot in March. I’ve since learned from virologists that while J&J is very efficient at stopping severe disease and hospitalization, efficacy is reduced at stopping symptomatic infection especially from variants.
Across Asia, Europe, the United Kingdom, and Canada, it is accepted practice for people to mix vaccines, e.g., their first vaccine from AstraZeneca and their second from Pfizer or Moderna. As usual, the CDC and FDA are slow to follow the world.
My primary care physician says the choice is mine. I recently blogged about vaccine boosters and, with this latest news, I scheduled a Pfizer shot for Friday.