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Nonpharmacological interventions to reduce respiratory viral transmission: an evidence-based review with recommendations

Volume: 59 - Issue: 2

First page: 114 - Last page: 132

E. Yuen - J. Fried - C. Salvador - D.A. Gudis - R.J. Schlosser - S.A. Nguyen - E.A. Brennan - N.R. Rowan

BACKGROUND: Viral respiratory infections are a leading cause of worldwide mortality and exert the potential to cause global socioeconomic crises. However, inexpensive, efficacious, and rapidly deployable strategies to reduce viral transmission are increasingly important in the setting of an ongoing pandemic, though not entirely understood. This article provides a comprehensive review of commonly employed nonpharmacological interventions to interrupt viral spread and provides evidence-based recommendations for their use.
METHODOLOGY: A systematic review of three databases was performed. Studies with defined endpoints of subjects receiving one of five interventions (nasal washing, gargling, personal protective equipment (PPE), social distancing, and hand hygiene) were included. An evidence-based review of the highest level of evidence, with recommendations, was created in accordance with a previously described, rigorous, iterative process.
RESULTS: Fifty-four primary studies were included. The most commonly studied intervention was hand hygiene, followed by PPE, gargling, saline nasal washing, and social distancing.
CONCLUSIONS: Mask use and hand hygiene are strong recommendations for prevention of viral transmission. Donning gloves, gowns, and eye protection are a recommendation in healthcare settings. Saline nasal washing and gargling are options in selected populations. Although an aggregate level of evidence is not provided, the authors recommend social distancing.

Rhinology 59-2: 114-132, 2021

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