Seroprevalence of SARS-CoV2 in Qatar: a longitudinal epidemiological study
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In Qatar, the first COVID-19 cases were reported on the 29th of February 2020, and the numbers increased dramatically within few months. Primary Health Care Corporation in collaboration with Qatar University's Biomedical Research Centre initiated a three-phase longitudinal epidemiological study to obtain precise estimates of point and period prevalence by age, gender and nationality. The first phase of the study is done and included 2084 individuals. The results showed that the overall prevalence was 11.1%. However, the point prevalence and the period prevalence of SARS-CoV2 was 1.6 and 9.5 % resp. IgG prevalence was higher amongst 18-39-year old (10 %) and ? 60 (11.9 %), and higher in males (11.6 %) compared with females (6.2 %), and higher incidences were reported among Highest amongst North African (10.9 %) and Southern Asian (15.1 %) nationalities.