Central Florida experts look at vaccine mix



SEMINOLE COUNTY, Florida – Some people who didn’t get Pfizer for the first two doses are now wondering if they can mix and match with a Pfizer booster.

What would you like to know

  • CDC last week approved recommendations to offer third dose of Pfizer COVID-19 vaccine to some people
  • Moderna and Johnson & Johnson have yet to be approved for booster shots
  • In general, doctors don’t recommend mixing vaccines, but say people at high risk can always talk to their provider about the possibility.
  • RELATED: CDC Study: 3rd Dose Booster Side Effects Similar To 2nd Dose

“Water aerobics helped me lose 200 pounds so I can’t complain – 60 pounds more to go,” said Holly Horton, Seminole County resident.

Health and fitness are very important to her.

That’s why she never misses a day of aqua aerobics at the gym and wants to do an encore.

But she can’t at the moment because she received the Moderna vaccine.

“They haven’t approved Moderna yet and I don’t want to mix my meds, they say on the internet you shouldn’t mix your meds, so the minute Moderna says it’s okay, I’m here online” , she said.

Associate Professor of Infectious Diseases at the University of Florida, Dr Kartik Cherabuddi, agreed and said he advises his patients not to mix and match booster shots.

“I hold this for my own patients and would advise others to do the same,” Cherabuddi said.

Despite this recommendation in the United States, giving Pfizer booster shots to people who were initially given a different brand is already happening in some European countries and in Canada.

While not advised in the United States, Cherabuddi said some people in particularly high-risk situations who can’t wait should see their doctor to mix other types with a Pfizer booster.

“Say you’re 70 years old and took one dose of the J&J vaccine… or you’re 66 and took two doses of Moderna and you also have heart disease and obesity… I think that’s a discussion you want to have with your personal physician, ”he said.

Horton has considered mixing a Pfizer booster with her Moderna vaccine, but after some research she plans to stop.

“I sort of wish they’d given me the Pfizer now – oh what is it, you know, I’m just gonna wait,” she said.

So, for now, she’ll just go to the gym every day.

During a press briefing on Tuesday, Dr Anthony Fauci said research data on mixing a Pfizer booster with other vaccines is not expected to be available until mid-October.


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