‘There were 43 dormitories housing 198 320 migrant workers with a median occupancy of 3578 (interquartile range, 1458-6120); 99.8% of residents were male, with a median age of 33 years (interquartile range, 28-39 years). As of July 25, 95.1% of all residents had at least 1 SARS-CoV-2 test, including 63.6% with PCR and 68.4% with serology. There were 111 280 residents with a positive PCR or serology result, for an overall infection prevalence of 56.1% (95% CI, 55.9%-56.3%) (range per dormitory, 0%-74.7%; median, 52.9%).
‘There were 24 197 clinical cases (12.2% of all residents; 21.7% of infected) from 42 dormitories and 87 083 subclinical cases (43.9% of all residents; 78.3% of all infected) (Table). Of all clinical cases, 20 cases required ICU admission (0.08% [95% CI, 0.05%-0.13%]), with 1 COVID-19 attributable death (case-fatality rate, 0.004% [95% CI, 0.0002%-0.027%]).’
Read here (JamaNetwork, Feb 9, 2021)