05/26/2020 12:00 AM EDT
Source: World Health Organization (WHO). Published: 5/26/2020. This 53-page document is a protocol for a nested case-control study of health workers exposed to confirmed COVID-19 patients. The primary objective of this case-control study among health workers is to characterize and assess the risk factors for SARS-CoV-2 infection in health workers exposed to COVID-19 patients. (PDF)
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