World Health Organization2016-07-262016-07-262016-07-26WHO/OHE/PED/GIP/EPI/2016.1https://iris.who.int/handle/10665/24625132 p.enInfluenza A virusDisease OutbreaksSummary of key information: practical to countries experiencing outbreaks of A(H5N1) and other subtypes of avian unfluenzaTechnical DocumentsFirst edition, July 2016