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  2. Sep 28, 2021 · How long does natural immunity last after a COVID-19 infection? Initially, researchers thought that natural immunity to COVID-19 only lasted for about 2 to 3 months before fading. There were even reports of people getting sick twice. But as experts have learned more about COVID-19, they’ve found that immunity lasts much longer than that.

  3. How Long Does Protection Last After COVID-19? After your body’s disease defense system (the immune system) fights off a virus, it keeps a memory of it. A study suggests that people’s immune systems remember COVID-19 for months after recovery. The immune system makes different types of cells and molecules to fight disease.

  4. Jun 30, 2021 · When the body’s immune system responds to an infection, it isn’t always clear how long any immunity that develops will persist. Covid-19 is a very new disease, and scientists are still working out precisely how the body fends off the virus. There is reason to think that immunity could last for several months or a couple of years, at least ...

    • Chris Baraniuk
    • 9
    • 2021
  5. How long does covid-19 immunity last? BMJ. 2021 Jun 30;373:n1605. doi: 10.1136/bmj.n1605. Author

    • Chris Baraniuk
    • 9
    • 2021
  6. Nov 10, 2021 · How Long Does Covid-19 Immunity Last? Published: November 10, 2021. Narrator: If you’ve been vaccinated against COVID-19, or if you’ve had a COVID infection, should you get a booster shot? How ...

  7. Oct 18, 2021 · The research, which appears in The Lancet Microbe, shows that unvaccinated people can expect immunity against reinfection to last 3–61 months after developing COVID-19 — if the virus is still ...

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