BACKGROUND: Nosocomial outbreaks leading to healthcare worker (HCW) infection and death have been increasingly reported during the coronavirus disease 2019 (COVID-19) pandemic .
OBJECTIVE: We implemented a strategy to reduce nosocomial acquisition .
METHODS: We summarized our experience in implementing a multipronged infection control strategy in the first 300 days (December 31 , 2019, to October 25 , 2020) of the COVID-19 pandemic under the governance of Hospital Authority in Hong Kong .
RESULTS: Of 5,296 COVID-19 patients , 4,808 (90.8 %) were diagnosed in the first pandemic wave (142 cases), second wave (896 cases), and third wave (3,770 cases) in Hong Kong . With the exception of 1 patient who died before admission, all COVID-19 patients were admitted to the public healthcare system for a total of 78,834 COVID-19 patient days . The median length of stay was 13 days (range , 1-128). Of 81,955 HCWs , 38 HCWs (0.05% ; 2 doctors and 11 nurses and 25 nonprofessional staff) acquired COVID-19 . With the exception of 5 of 38 HCWs (13.2 %) infected by HCW-to-HCW transmission in the nonclinical settings, no HCW had documented transmission from COVID-19 patients in the hospitals . The incidence of COVID-19 among HCWs was significantly lower than that of our general population (0.46 per 1,000 HCWs vs 0.71 per 1,000 population; P = .008). The incidence of COVID-19 among professional staff was significantly lower than that of nonprofessional staff (0.30 vs 0.66 per 1,000 full-time equivalent; P = .022).
CONCLUSIONS: A hospital-based approach spared our healthcare service from being overloaded . With our multipronged infection control strategy, no nosocomial COVID-19 in was identified among HCWs in the first 300 days of the COVID-19 pandemic in Hong Kong.