Will 2 flu shots this year boost immunity? When is the best time to get it? Here's what health experts say - CNBC

Though you can get the flu during any time of year, flu season in the U.S.

Getting a flu shot this year may help cut down on the potential effects of a "twindemic," which could happen if a Covid-19 surge and a severe flu season overlap.

With that in mind, you might be wondering if the pandemic changes any of the usual flu vaccine guidelines — and if getting a second dose will increase immunity.

Flu shot recommendations remain the same, and unless you are under nine years old and have never gotten a flu shot before, a second dose is not recommended, says Dr.

Children ages six months through eight years who have never been vaccinated against the flu benefit from two doses the first season they get the vaccine, the U.S.

"If your immune system has never seen influenza before and you're getting the vaccine for the first time, your immune system doesn't quite know what to do with that," Dr.

"When you're older and you've had flu vaccines before, or you've had influenza before, then your immune system responds quite quickly to one dose of vaccine," Dr.

"We don't see a noticeable benefit from getting multiple doses of the vaccine.

According to the CDC, it is recommended that everyone over the age of six months gets vaccinated against the flu every year, with very rare exception (such as those with a severe allergy to the flu vaccine or an ingredient in it).

If we keep up all the habits we've learned to protect ourselves from Covid-19 — like frequently washing our hands, social distancing and wearing masks — on top of getting the flu shot, Dr