Herd immunity against severe acute respiratory syndrome coronavirus 2 infection in 10 communities, qatar
Author | Jeremijenko, A. |
Author | Chemaitelly, H. |
Author | Ayoub, H.H. |
Author | Alishaq, M. |
Author | Abou-Samra, A.-B. |
Author | Al Ajmi, J.A.A.A. |
Author | Al Ansari, N.A.A. |
Author | Al Kanaani, Z. |
Author | Al Khal, A. |
Author | Al Kuwari, E. |
Author | Al-Mohammed, A. |
Author | Al Molawi, N.H.A. |
Author | Al Naomi, H.M. |
Author | Butt, A.A. |
Author | Coyle, P. |
Author | El Kahlout, R.A. |
Author | Gillani, I. |
Author | Kaleeckal, A.H. |
Author | Masoodi, N.A. |
Author | Thomas, A.G. |
Author | Nafady-Hego, H. |
Author | Latif, A.N. |
Author | Shaik, R.M. |
Author | Younes, N.B.M. |
Author | Abdul Rahim, H.F. |
Author | Yassine, H.M. |
Author | Al Kuwari, M.G. |
Author | Al Romaihi, H.E. |
Author | Al-Thani, M.H. |
Author | Bertollini, R. |
Author | Abu-Raddad, L.J. |
Available date | 2023-09-18T09:52:26Z |
Publication Date | 2021 |
Publication Name | Emerging Infectious Diseases |
Resource | Scopus |
Abstract | We investigated what proportion of the population acquired severe acute respiratory syndrome coronavirus 2 (SARSCoV- 2) infection and whether the herd immunity threshold has been reached in 10 communities in Qatar. The study included 4,970 participants during June 21-September 9, 2020. Antibodies against SARS-CoV-2 were detected by using an electrochemiluminescence immunoassay. Seropositivity ranged from 54.9% (95% CI 50.2%-59.4%) to 83.8% (95% CI 79.1%-87.7%) across communities and showed a pooled mean of 66.1% (95% CI 61.5%-70.6%). A range of other epidemiologic measures indicated that active infection is rare, with limited if any sustainable infection transmission for clusters to occur. Only 5 infections were ever severe and 1 was critical in these young communities; infection severity rate of 0.2% (95% CI 0.1%-0.4%). Specifi c communities in Qatar have or nearly reached herd immunity for SARS-CoV-2 infection: 65%-70% of the population has been infected. |
Sponsor | This study was supported by the Hamad Medical Corporation, Ministry of Public Health, and the Biomedical Research Program and the Biostatistics, Epidemiology, and Biomathematics Research Core, both at |
Language | en |
Publisher | Centers for Disease Control and Prevention (CDC) |
Subject | Nasopharyngeal Swabs Serologic Tests COVID-19 |
Type | Article |
Pagination | 1343-1352 |
Issue Number | 5 |
Volume Number | 27 |
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COVID-19 Research [832 items ]
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Mathematics, Statistics & Physics [736 items ]