COVID-19 can cause deadly healthcare-associated outbreaks. In a major London teaching hospital, 66/435 (15%) of COVID-19 inpatient cases between 2 March and 12 April 2020 were definitely or probably hospital-acquired, through varied transmission routes. The case fatality was 36%. Nosocomial infection rates fell following comprehensive infection prevention and control measures.
Keywords: COVID-19; Nosocomial; healthcare-associated infection; infection prevention and control; transmission.
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