The World Health Organization (WHO) declared Uganda's Bundibugyo Ebola outbreak over on 26 August, closing a chain of 20 cases and two deaths1. WHO waits 42 days, twice Ebola's longest incubation period, before calling an outbreak over. Uganda's count started when Mulago National Referral Hospital in Kampala discharged the country's last patient on 16 July.
The Ugandan government had declared itself Ebola-free on 28 July, a month before WHO's countdown ended. WHO's declaration confirms that call rather than overturning it. The two countries share a long border, and DR Congo, where the outbreak began, has recorded thousands of cases since May.
