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Jun 30, 2020 · Herd immunity occurs when a large portion of a community (the herd) becomes immune to a disease, making the spread of disease from person to person unlikely. As a result, the whole community becomes protected — not just those who are immune. Often, a percentage of the population must be capable of getting a disease in order for it to spread.
Sep 13, 2021 · Yes—but “herd immunity to COVID-19” does not mean that we will soon achieve a level of immunity in the population, like what we see with measles, and coronavirus will be “over.” Returning to life as it was before the pandemic, without seeing large coronavirus outbreaks, is unlikely to happen for several years, for a few reasons.
Jan 9, 2023 · Vaccine development for COVID-19 has advanced at an unprecedented rate in the last year, which was not previously conceivable. Achievement of herd immunity is a challenging idea to grasp. In global immunization, many countries are arranging vaccination campaigns, and vaccines have been administered exponentially.
- Yasha N Suryawanshi, Dalia A Biswas
- Cureus. 2023 Jan; 15(1): e33575.
- 10.7759/cureus.33575
- 2023/01
May 5, 2021 · One problem with seeking the threshold for COVID-19 herd immunity is that although the mathematical answer is quite simple, the assumptions underlying it are not, says epidemiologist Marc Lipsitch at the Harvard T.H. Chan School of Public Health in Boston, MA. In fact, there can be considerable disagreement about what those basic assumptions are.
- Amy McDermott
- 10.1073/pnas.2107692118
- 2021
- 2021/05/05
Apr 23, 2021 · You’ve probably heard about “herd immunity” — when a large enough percentage of the population is immune to a disease that it ceases to spread — as a key to ending the COVID-19 pandemic. If the bulk of the herd has immunity, either through vaccination or infection, even those who can’t be vaccinated will be protected.
Sep 24, 2020 · Herd immunity in measles suggests the whole population is protected from emerging infections when 90% or more are immunized, whether by vaccination or recovery from natural infection. However, in the case of COVID-19, there are two outcomes when people get naturally infected – recovery and death.
Jul 17, 2020 · Herd immunity happens when enough people have developed immunity to a particular infectious disease that the risk of further community transmission is either eliminated or significantly reduced. This requires a certain percentage of the population to have been exposed and infected with the disease — in this case, COVID-19 — so that they ...
