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Covid-19: Is Manaus the final nail in the coffin for natural herd immunity?
British medical journal, 2021Many thought a second wave was impossible in Brazil’s Amazon because of the severity of the first. A second crisis has stunned the city of Manaus, reports Luke Taylor, and raises questions around a new variant and the likelihood of natural herd ...
Luke Taylor
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Veterinary Clinics of North America: Food Animal Practice, 2019
Herd immunity is an important concept of epidemic theory regarding the population-level effect of individual immunity to prevent transmission of pathogens. Herd immunity exists when sufficient numbers of animals in a group or population have immunity against an agent such that the likelihood of an effective contact between diseased and susceptible ...
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Herd immunity is an important concept of epidemic theory regarding the population-level effect of individual immunity to prevent transmission of pathogens. Herd immunity exists when sufficient numbers of animals in a group or population have immunity against an agent such that the likelihood of an effective contact between diseased and susceptible ...
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Immunisation and herd immunity
The Lancet, 1990This paper sketches how mathematical models that are soundly based on epidemiological data can help us understand the effects upon population-level or «heard» immunity of specific immunisation policies. Some of the questions that can be illuminated within such an analytic framework are: What proportion of the population should be immunised to achieve ...
R M, Anderson, R M, May
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Herd immunity and primary immune deficiencies
Vaccine, 2019This letter addresses the issues adjoining the article by Bernadou et al. Measles outbreak linked to insufficient vaccination coverage in Nouvelle-Aquitaine Region, France, October 2017 to July 2018. Euro Surveill. 2018;23(30):pii = 1800373. https://doi.org/10.2807/1560-7917.ES.2018.23.30.1800373.
Farrugia, Albert, Quinti, Isabella
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Clinical Infectious Diseases, 1983
The basic concept of herd immunity is directly applicable only under very special conditions. The agents of disease must be restricted to a single host species within which transmission occurs by relatively direct contact, and infection induces solid immunity. Also outbreaks must occur only in randomly mixing populations.
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The basic concept of herd immunity is directly applicable only under very special conditions. The agents of disease must be restricted to a single host species within which transmission occurs by relatively direct contact, and infection induces solid immunity. Also outbreaks must occur only in randomly mixing populations.
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JAMA: The Journal of the American Medical Association, 1971
ABSTRACT To the Editor.— Plotkin's EDITORIAL (215:1492, 1971) implies that no one has seen "herd immunity" in rubella. This is incorrect. The fact that adult Americans reach the age of child bearing without having contracted the disease is evidence that they had personally been protected from exposure to natural infection by herd immunity.In other ...
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ABSTRACT To the Editor.— Plotkin's EDITORIAL (215:1492, 1971) implies that no one has seen "herd immunity" in rubella. This is incorrect. The fact that adult Americans reach the age of child bearing without having contracted the disease is evidence that they had personally been protected from exposure to natural infection by herd immunity.In other ...
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Five reasons why COVID herd immunity is probably impossible
Nature, 2021C. Aschwanden
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A look at the long history of vaccines, yesterday, today and still to come. In Herding Immunity, Stacy Mintzer Herlihy explores the compelling history of vaccines and the equally long history of vaccination opposition. By connecting the contemporary anti-vax movement with its historical roots, Herlihy integrates modern
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Herd Immunity: History, Theory, Practice
Epidemiologic Reviews, 1993Herd immunity has to do with the protection of populations from infection which is brought about by the presence of immune individuals. The concept has a special aura, in its implication of an extension of the protection imparted by an immunization program beyond vaccinated to unvaccinated individuals and in its apparent provision of a means to ...
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