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     • What is herd immunity? Herd immunity means that enough people in a group or area have achieved immunity (protection) against a virus or other infectious agent to make it very difficult for the infection to spread.
     my.clevelandclinic.org › health › articles

     Herd Immunity: History, Vaccines, Threshold & What It Means

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   What is herd immunity?

   • The infection, in effect, no longer has the upper hand. Herd immunity can be achieved in one of two ways: through vaccination or prior illness, says the Centers for Disease Control and Prevention (CDC). Your immune system naturally develops infection-fighting antibodies when it encounters a disease.

   What Is 'Herd Immunity,' Can It Stop COVID-19? | Health.com

   www.health.com/condition/infectious-diseases/coronavirus/herd-immunity

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   What is the herd immunity threshold?

   • The herd immunity threshold In order for an infection which is transmitted from person to person, or for which humans are the principal reservoir, to be maintained in a population, each case of infection must give rise to at least one other case – i.e. the effective reproduction number must be above 1.

   Concepts of herd protection and immunity - ScienceDirect

   www.sciencedirect.com/science/article/pii/S1877282X10000299

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   What does herd immunity mean for the covid-19 pandemic?

   • For one, the emergence of new variants of SAR-CoV-2 (the virus that causes COVID-19) means that the infection is becoming more transmissible. Herd immunity also hinges on how quickly the nation gets shots into arms and how long that immunity lasts, the Times points out.

   What Is 'Herd Immunity,' Can It Stop COVID-19? | Health.com

   www.health.com/condition/infectious-diseases/coronavirus/herd-immunity

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   Will the US ever reach herd immunity from covid-19?

   • That's a huge potential issue, and one that now has many experts saying will likely keep the US from reaching herd immunity, according to a newly-published piece in the Times. As of this second, more than 56% of adults in the country have received at least one dose of the COVID-19 vaccine, according to CDC data.

   What Is 'Herd Immunity,' Can It Stop COVID-19? | Health.com

   www.health.com/condition/infectious-diseases/coronavirus/herd-immunity

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3. my.clevelandclinic.org › 22599-herd-immunityHerd Immunity: History, Vaccines, Threshold & What It Means

   my.clevelandclinic.org › 22599-herd-immunity

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   Mar 16, 2022 · Herd immunity is when enough people are immune to a disease that it can't spread easily. Learn about the types of immunity, how vaccines work, and why herd immunity is important for COVID-19 and other diseases.

4. www.verywellhealth.com › what-is-herd-immunity-4801526What Is Herd Immunity? - Verywell Health

   www.verywellhealth.com › what-is-herd-immunity-4801526

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   Apr 24, 2020 · How Does Herd Immunity Work? Herd immunity is something that happens when a large number of people in a community develop immunity—or the body’s own protection—against a contagious disease. This immunity can be developed naturally when the body makes antibodies after a viral infection that can help fight the infection better the next time.

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     How does herd immunity work?

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     Herd immunity explained | what is community immunity?

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6. www.health.com › coronavirus › herd-immunityHerd Immunity: Definition, Examples, How To Achieve It - Health

   www.health.com › coronavirus › herd-immunity

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   Jan 20, 2024 · Herd immunity is when most people in a population are immune to a disease, making it harder for it to spread. Learn how herd immunity can be achieved through natural infection or vaccination, and why it's important for some diseases.

7. www.mayoclinic.org › diseases-conditions › coronaHerd immunity and COVID-19: What you need to know

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   Nov 4, 2023 · Herd immunity occurs when a large portion of a community becomes immune to a disease, making it unlikely to spread. Learn how herd immunity works, its role in ending the COVID-19 pandemic and the challenges involved.

8. www.healthline.com › health › herd-immunityHerd Immunity: What It Means for COVID-19 - Healthline

   www.healthline.com › health › herd-immunity

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   Apr 2, 2020 · Herd immunity is also called community immunity and herd or group protection. Herd immunity happens when so many people in a community become immune to an infectious disease that it...

9. newsnetwork.mayoclinic.org › discussionUnderstanding herd immunity - Mayo Clinic News Network

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   May 4, 2020 · Herd immunity is when enough people are immune to an infectious disease to prevent its spread. Learn how herd immunity can be achieved by natural infection or vaccination, and what percentage is needed for COVID-19.

10. en.wikipedia.org › wiki › Herd_immunityHerd immunity - Wikipedia

    en.wikipedia.org › wiki › Herd_immunity

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    Herd immunity (also called herd effect, community immunity, population immunity, or mass immunity) is a form of indirect protection that applies only to contagious diseases. It occurs when a sufficient percentage of a population has become immune to an infection, whether through previous infections or vaccination , [1] thereby reducing the ...