Date	Event	Description
4 July 2016	New citation required but conclusions have not changed	New author team. One new trial was found, with no change to previous conclusions. We made the following corrections and revisions: more detailed documentation of methods and additional sections to comply with current standards amendments and corrections in the results section inclusion of additional study data in our primary analysis, which changed the RR for incomplete recovery from 0.71 (95% CI 0.61 to 0.83) to 0.63 (95% CI 0.50 to 0.80) we largely presented available data analyses, reporting intention‐to‐treat data only when trialists used this approach removal of comparisons involving antiviral co‐medication, which are analysed in a separate Cochrane review inclusion of an analysis of adverse events inclusion of a 'Summary of findings' table and of comments on the quality of evidence in the text of the review
4 March 2016	New search has been performed	Searches updated and integrated