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  1. Apr 9, 2021 · Herd immunity describes a situation in which a large part of a population is immune to a particular disease due to vaccination or previously contracting the illness and developing anti-bodies. This indirectly also helps ensure the protection of the remaining population, and offers a higher chance of combating and reducing transmission.

  2. 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. Immunity happens in multiple ways: through natural infection, vaccination or passive transfer. Vaccination is the best way.

  3. Nov 4, 2023 · Herd immunity makes it possible to protect the population from a disease, including those who can't be vaccinated, such as newborns or those who have compromised immune systems. But reaching herd immunity through vaccination against COVID-19 will likely be difficult for many reasons. For example: Vaccine hesitancy.

  4. Apr 16, 2021 · Both viral evolution and changes in how people interact with each other can bring this number up or down. Below any “herd immunity threshold,” immunity in the population (for example, from vaccination) can still have a positive effect. And above the threshold, infections can still occur. The higher the level of immunity, the larger the benefit.

  5. 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 ...

  6. Feb 18, 2021 · Scenario 1: A more infectious variant. It looks like it will take higher vaccination rates to achieve herd immunity against the more infectious strain of SIMVID-19. This is a real concern with ...

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