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Tan IB, Tan C, Hsu LY, et al. Prevalence and Outcomes of SARS-CoV-2 Infection Among Migrant Workers in Singapore. JAMA. 2021;325(6):584–585. doi:10.1001/jama.2020.24071
High-density communal residences are at elevated risk of large outbreaks of respiratory disease.1,2 After an initial nationwide outbreak of 231 cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections in Singapore, which was contained as of March 24, 2020, a surge of 244 cases among migrant workers residing in dormitories, largely from Bangladesh and India, occurred from March 25 to April 7. A national task force was formed to coordinate Singapore’s outbreak response. A national lockdown from April 7 to June 1 enforced movement restriction and confined workers to their dormitories. Medical posts were deployed on-site in all dormitories, and testing capacity for testing and screening residents increased. All workers with a positive polymerase chain reaction (PCR) test result were admitted to health care facilities for isolation and treatment. We examined the prevalence and outcomes of SARS-CoV-2 infection among migrant workers in Singapore.
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