Seroprevalence of SARS-CoV-2 antibody among urban Iranian population: findings from the second large population-based cross-sectional study.

Of course, it should be mentioned that the abovementioned studies from the USA and Denmark were conducted during the surge of COVID-19 in these countries and we witnessed a decreasing trend in the disease thereafter [ 1 ]; however, the SARS-CoV-2 seroprevalence was considerably still higher in our country than in those countries.

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