Physical interventions to interrupt or reduce the spread of respiratory viruses: systematic review.

This paper describes a systematic review of evidence for the effectiveness of physical interventions to interrupt or reduce the spread of respiratory viruses. Of 2300 titles scanned 138 full papers were retrieved, including 49 papers of 51 studies. It was concluded that routine long term implementation of some physical measures to interrupt or reduce the spread of respiratory viruses might be difficult but many simple and low cost interventions could be useful in reducing the spread. British Medical Journal 2007; 27 Nov.