А смысл есть
If you've recovered from Covid, you do have a degree of immunity against the virus — but the amount can vary significantly, based on the severity of your illness and how long ago you recovered.
Currently, there's no known way to test your immunity levels. The U.S. Food and Drug Administration says antibody tests, which can determine whether or not you've had Covid, are unreliable judges of your immunity — because antibodies alone don't fight against Covid. Memory B cells and T cells also play a significant role in helping your immune system fight against infections.
And even if you have lots of natural immunity, getting vaccinated significantly boosts your chances of staying healthy, according to data published last month by the Centers for Disease Control and Prevention. The agency studied more than 7,000 people, and found that unvaccinated people who'd recovered from Covid were five times as likely to catch it again, compared to people who got two doses of an mRNA vaccine from Pfizer or Moderna.
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