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- DictionaryHerd im·mu·ni·ty
noun
- 1. resistance to the spread of an infectious disease within a population that is based on pre-existing immunity of a high proportion of individuals as a result of previous infection or vaccination: "the level of vaccination needed to achieve herd immunity varies by disease but ranges from 83 to 94 percent"
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- 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.
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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. Immunity happens in multiple ways: through natural infection, vaccination or passive transfer. Vaccination is the best way.
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.
Updated 31 December 2020. What is ‘herd immunity’? 'Herd immunity', also known as 'population immunity', is the indirect protection from an infectious disease that happens when a population is immune either through vaccination or immunity developed through previous infection.
- What is ‘herd immunity’?'Herd immunity', also known as 'population immunity', is the indirect protection from an infectious disease that happens when a population is immun...
- What is WHO’s position on ‘herd immunity’ as a way of fighting COVID-19?Attempts to reach ‘herd immunity’ through exposing people to a virus are scientifically problematic and unethical. Letting COVID-19 spread through...
- What do we know about immunity from COVID-19?Most people who are infected with COVID-19 develop an immune response within the first few weeks after infection. Research is still ongoing into ho...
- What is WHO’s position on ‘lockdowns’ as a way of fighting COVID-19?Large scale physical distancing measures and movement restrictions, often referred to as ‘lockdowns’, can slow COVID‑19 transmission by limiting co...
May 4, 2020 · The concept of herd immunity, or community immunity, has sparked debate about whether it would control the spread of COVID-19. According to the Centers for Disease Control and Prevention (CDC) , herd immunity is a situation in which sufficient proportions of a population are immune to an infectious disease to make its spread from person to ...
Jan 20, 2024 · Herd immunity—or community immunity—occurs when enough people in a population are immune to a disease. This type of immunity helps make person-to-person transmission...
Apr 16, 2021 · What is herd immunity? When most of a population is immune to an infectious disease, this provides indirect protection—or population immunity (also called herd immunity or herd protection)—to those who are not immune to the disease.
Nov 3, 2021 · The term herd immunity means that enough of a population has gained immunity to stifle a pathogen’s spread. You can think of herd immunity as being similar to fire...
