Just this week, the FDA gave a green light on updated COVID boosters from Pfizer and Moderna. They're supposed to help ward-off subvariants of the disease and were just recommended Tuesday by the CDC. With flu season on the horizon and RSV lingering, you may be planning on getting vaccinated.

An immunologist tells 21 News you should not get them all at the same time, however.

"Getting vaccines causes a huge storm in your immune system," said Dr. Asif Khan, owner of the Asthma and Allergy Center. "And we don't know what that might cause in maybe the elderly or even if they're immunocompromised," he said.

Contrary to popular belief, RSV vaccines are not just for children.

"The RSV can afflict anybody," said Dr. Khan. "RSV afflicted children more than anything else and they started noticing that the elderly started developing it and it was very, very severe," he said.

So when it comes to children, infants and all adults, Dr. Khan recommends everyone get RSV, COVID and flu vaccines, but not all at once.

"Space them out, because if you do have a problem with a vaccine and you get all three at the same time, which one is it," he said.

Dr. Khan says, ultimately the vaccines will keep you from spreading illness and better protect the immunocompromised. RSV and some flu shots are available now while COVID vaccines are expected within the next two days.