Seroprevalence of antibodies to SARS-CoV-2 among blood donors in the early months of the pandemic in Saudi Arabia

AbstractBackground Serologic testing provides better understanding of SARS-CoV-2 prevalence and its transmission. This study was an investigation the antibodies to among blood donors in Saudi Arabia. Objective To estimate seroprevalence anti-SARS-CoV-2 Arabia during early phase COVID-19 pandemic. Methods Serology results epidemiological data were analyzed for 837 adult donors, with no confirmed infection, from 20th 25th May 2020. Seroprevalence determined using electrochemical immunoassay detect antibodies. Results The overall 1.4% (12/837). Non-citizens had higher compared citizens (OR 13.6, p = 0.001). Secondary education significantly associated 6.8, 0.005). showed that highest Makkah (8.1%). Uisng as reference, other areas was: Madinah 4.1% 0.48, 95% CI 0.12?1.94), Jeddah 2.3% 0.27, 0.31?2.25), Qassim 2.9 % 0.34, 0.04?2.89) these not statistically different region. Conclusions At months pandemic Arabia, low, but non-citizens. These findings may indicate non-citizens less educated individuals be attentive preventive measures. Monitoring trends over time require repeated sampling.