Characterizing the Qatar advanced-phase SARS-CoV-2 epidemic
المؤلف | Abu-Raddad, Laith J. |
المؤلف | Chemaitelly, Hiam |
المؤلف | Ayoub, Houssein H. |
المؤلف | Al Kanaani, Zaina |
المؤلف | Al Khal, Abdullatif |
المؤلف | Al Kuwari, Einas |
المؤلف | Butt, Adeel A. |
المؤلف | Coyle, Peter |
المؤلف | Jeremijenko, Andrew |
المؤلف | Kaleeckal, Anvar Hassan |
المؤلف | Latif, Ali Nizar |
المؤلف | Owen, Robert C. |
المؤلف | Rahim, Hanan F.Abdul |
المؤلف | Al Abdulla, Samya A. |
المؤلف | Al Kuwari, Mohamed G. |
المؤلف | Kandy, Mujeeb C. |
المؤلف | Saeb, Hatoun |
المؤلف | Ahmed, Shazia Nadeem N. |
المؤلف | Al Romaihi, Hamad Eid |
المؤلف | Bansal, Devendra |
المؤلف | Dalton, Louise |
المؤلف | Al-Thani, Mohamed H. |
المؤلف | Bertollini, Roberto |
تاريخ الإتاحة | 2023-09-06T08:36:44Z |
تاريخ النشر | 2021-12-01 |
اسم المنشور | Scientific Reports |
المعرّف | http://dx.doi.org/10.1038/s41598-021-85428-7 |
الاقتباس | Abu-Raddad, L. J., Chemaitelly, H., Ayoub, H. H., Al Kanaani, Z., Al Khal, A., Al Kuwari, E., ... & Bertollini, R. (2021). Characterizing the Qatar advanced-phase SARS-CoV-2 epidemic. Scientific reports, 11(1), 6233. |
الملخص | The overarching objective of this study was to provide the descriptive epidemiology of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic in Qatar by addressing specific research questions through a series of national epidemiologic studies. Sources of data were the centralized and standardized national databases for SARS-CoV-2 infection. By July 10, 2020, 397,577 individuals had been tested for SARS-CoV-2 using polymerase-chain-reaction (PCR), of whom 110,986 were positive, a positivity cumulative rate of 27.9% (95% CI 27.8–28.1%). As of July 5, case severity rate, based on World Health Organization (WHO) severity classification, was 3.4% and case fatality rate was 1.4 per 1,000 persons. Age was by far the strongest predictor of severe, critical, or fatal infection. PCR positivity of nasopharyngeal/oropharyngeal swabs in a national community survey (May 6–7) including 1,307 participants was 14.9% (95% CI 11.5–19.0%); 58.5% of those testing positive were asymptomatic. Across 448 ad-hoc testing campaigns in workplaces and residential areas including 26,715 individuals, pooled mean PCR positivity was 15.6% (95% CI 13.7–17.7%). SARS-CoV-2 antibody prevalence was 24.0% (95% CI 23.3–24.6%) in 32,970 residual clinical blood specimens. Antibody prevalence was only 47.3% (95% CI 46.2–48.5%) in those who had at least one PCR positive result, but 91.3% (95% CI 89.5–92.9%) among those who were PCR positive > 3 weeks before serology testing. Qatar has experienced a large SARS-CoV-2 epidemic that is rapidly declining, apparently due to growing immunity levels in the population. |
اللغة | en |
الناشر | springer nature |
الموضوع | qatar advanced-phase SARS-CoV-2 |
النوع | Article |
رقم العدد | 1 |
رقم المجلد | 11 |
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