Three groups of people are approved to receive a booster dose of Pfizer’s COVID-19 vaccine at least six months after receiving their second dose, including:

  • People aged 65 years and older and residents in long-term care settings
  • People aged 18-64 years with certain underlying medical conditions
  • People aged 18-64 years who are at increased risk for COVID-19 exposure and transmission because of occupational or institutional settings

Currently, 76,222 third or booster doses have been administered. At this time, the Mississippi Department of Health does not separately report the number of booster shots given. And there is an important difference between what is considered a ‘third dose’ versus a ‘booster.’

Third doses can be either Pfizer or Moderna and are necessary for people with immunocompromised conditions to be considered fully vaccinated.

Presently, boosters can only be Pfizer shots, according to the Centers for Disease Control and Prevention, and only people who are already fully vaccinated for at least six months can get one.

View our data on booster shots administered so far:


COVID-19 Boosters: Who’s eligible and how to get one

Ask Me Anything: COVID-19 in Mississippi with Will Stribling

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Nigel Dent, a native of Natchez, is Mississippi Today’s audience journalist. He works as a member of the audience team to engage with readers, create audience-centered resources and distribute Mississippi Today’s news across various digital platforms, including social media and newsletter products.