Date	Event	Description
5 November 2013	New search has been performed	Seizures are captured within the primary outcome acute (short‐term) neurological sequelae and consequently have now been removed from the list of secondary outcomes. No new trials were included in this update. Two new trials initially considered were excluded (Berkley 2004; Maitland 2013). In this update we have used the GRADE approach to interpret the findings and these have been updated. This provides critically important information for healthcare decision‐making. This update also takes into account the new MECIR standards.
5 November 2013	New citation required but conclusions have not changed	A new review author joined to help update this review.
14 June 2013	Feedback has been incorporated	Feedback added.
9 August 2010	New search has been performed	Searches conducted. No new trials were included or excluded in this update.
19 May 2008	Amended	Converted to new review format.
1 March 2007	New search has been performed	Searches conducted.
17 March 2005	New search has been performed	Searches conducted.