Will COVID-19 vaccines give lifelong immunity to the disease?

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Will we ever develop immunity towards COVID-19, if we do how long would that last, this has been a mystery for all of us ever since the pandemic started.

However, two new studies are helping us better understand how our immune systems adapt to infection, and what that might mean for vaccination.

The studies, published in May, find that infection-induced immunity might last months or longer. But experts believe vaccination may lengthen the duration of this immunity.

Another important finding from both studies is that many people who have recovered from COVID-19 and later receive an mRNA vaccine (like the Moderna or Pfizer-BioNTech vaccine) may not need booster shots.

Immunity in people:

Both studies examined people who are exposed to the coronavirus roughly a year earlier. According to one study, published in Nature, immune cells located in our bone marrow keep a “memory” of the coronavirus and are able to create protective antibodies to prevent reinfection.

The other study, found these immune cells can mature and strengthen for about a year after infection.

I had COVID-19? Should I still get vaccinated?

It is still important for people who had COVID to be vaccinated. People who’ve had the disease cannot rely on previous infection to achieve immunity the way people could with measles, mumps, and rubella. Because the next time if you get COVID, it can be milder, it can be the same in degree of severity or it can be worse.

According to the CDC, reinfection means someone got sick once, recovered, and then got sick again. The CDC emphasizes that although uncommon, reinfection can happen with COVID-19.

So it is important if you’ve had COVID-19 not to rely on the fact that you’ve had it and probably won’t get it again. You will need to be immunized because the antibodies that you get from infection are different from the antibodies that you get from immunization.

Will we get more booster shots in the future?

These new studies also suggest that a majority of people who have recovered from COVID-19 and were later immunized with one of the mRNA vaccines will not need booster shots to maintain protection against the virus.

However, vaccinated people who didn’t have a previous infection will likely require booster shots, as will the small number of people who had the disease but didn’t produce a sufficiently strong immune response.

The two recently published studies have found that people who recover from COVID-19 develop antibodies that may last almost a year.

Although reinfection, while uncommon, can still happen — and being vaccinated with one of the mRNA vaccines (like the Moderna of Pfizer-BioNTech vaccine) can significantly boost immunity.

However, medical experts caution that people who haven’t had a previous infection will likely need them.

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