Yemen Electronic Disease Early Warning System Annual Report 2016 provides information on confirmed cases, suspected cases, and outbreaks of priority diseases in Yemen during 2016. Information comes from Yemen's Electronic Disease Early Warning System (EDEWS), which captures data from 1,982 health facilities, in 23 governorates on 31 epidemic-prone diseases. The report also includes an appendix with the system's reporting form and information about case definitions. Data for select diseases are provided in graphs and tables, and broken down by epidemiological week, governorates and months.