(WJW) — As some people receive a third COVID vaccine dose, or booster shot, the Centers for Disease Control and Prevention is now talking about a fourth dose.
The CDC, which updated its guidelines Tuesday, said people who are moderately and severely immunocompromised may need the additional shot.
“Moderately and severely immunocompromised people aged ≥18 years who completed an mRNA COVID-19 vaccine primary series and received an additional mRNA vaccine dose may receive a single COVID-19 booster dose (Pfizer-BioNTech, Moderna or Janssen) at least 6 months after completing their third mRNA vaccine dose,” the health agency wrote on its website.
“In such situations, people who are moderately and severely immunocompromised may receive a total of four COVID-19 vaccine doses,” the CDC continued.
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The CDC classifies the third vaccine shot for immunocompromised people as an “additional dose” at the same volume given in the first two shots. The fourth dose is considered a “booster” for those individuals, and administered at a volume of only half that was given in the first three doses.
For those who have received a Pfizer-BioNTech or Moderna COVID-19 vaccine, the CDC says the following groups are eligible for a booster shot at six months or more after their initial series:
- 65 years and older
- Age 18+ who live in long-term care settings
- Age 18+ who have underlying medical conditions
- Age 18+ who work or live in high-risk settings
The CDC now says booster shots are recommended for those who received the Johnson & Johnson COVID-19 vaccine, too. In this case, the recommendation is for anyone 18 and older who was vaccinated two or more months ago.
You can find a COVID vaccine near you by visiting vaccines.gov.