Abstract
Objective: To determine if there was herd protection conferred to unprotected healthcare workers (HCWs) by N95 respirators worn by colleagues. Methods: Data were analysed from a prospective cluster randomized clinical trial conducted in Beijing, China between 1 December 2008 and 15 January 2009. A minimum compliance level (MCL) of N95 respirators for prevention of clinical respiratory illness (CRI) was set based on various compliance cut-offs. The CRI rates were compared between compliant (≥MCL) and non-compliant (
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Chen, X., Chughtai, A. A., & MacIntyre, C. R. (2017). Herd protection effect of N95 respirators in healthcare workers. In Journal of International Medical Research (Vol. 45, pp. 1760–1767). SAGE Publications Ltd. https://doi.org/10.1177/0300060516665491
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