Herd immunity: evidence and way forward for COVID-19
نویسندگان
چکیده
منابع مشابه
COVID-19 Vaccination, Herd Immunity and The Transition Toward Normalcy: Challenges with The Upcoming Sports Event
Background. The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has created an unprecedented and daunting challenge for humanity to survive. This has also affected the sporting events across the globe as the majority of the tournaments have been cancelled or postponed as a result. For life to return to pre-pandemic normalcy, a...
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The global outbreak of coronavirus disease-2019 (COVID-19) has affected most countries in the world. Our knowledge of diagnostic tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is evolving, and it is important to have a clear understanding of the nature of the tests and the interpretation of their findings. In this paper, the purpose is to interpret the results of two typ...
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In a series of elegant experiments on baboons, Warfel et al. conclude that acellular pertussis vaccines (aP) prevent disease but fail to protect against transmissible infection (1). The authors speculate that this fact may explain the resurgence of pertussis in some countries (2). Although the animal model of Warfel et al. is a true breakthrough, we question the soundness of their extrapolation...
متن کاملHerd immunity and the herd severity effect.
868 www.thelancet.com/infection Vol 15 August 2015 6 DuPont HL. Approach to the patient with infectious colitis. Curr Opin Gastroenterol 2012; 28: 39–46. 7 Gu B, Cao Y, Pan S, et al. Comparison of the prevalence and changing resistance to nalidixic acid and ciprofl oxacin of Shigella between Europe-America and Asia-Africa from 1998 to 2009. Int J Antimicrob Agents 2012; 40: 9–17. 8 Baker KS, Da...
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Many organisms vary their level of investment in defensive characters. Protective traits may be induced upon exposure to predators or parasites. In a similar way, humans vaccinate in response to threatening epidemics. When most group members defend themselves, epidemics die out quickly because parasites cannot spread. A high level of group (herd) immunity is therefore beneficial to the group. T...
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ژورنال
عنوان ژورنال: Journal of the College of Community Physicians of Sri Lanka
سال: 2020
ISSN: 2579-1451,1391-3174
DOI: 10.4038/jccpsl.v26i5.8348