Spread of yellow fever virus outbreak in Angola and the Democratic Republic of the Congo 2015–16: a modelling study - G. R. William Wint; Kamran Khan; Michael A. Johansson; Robin N Thompson; Sarah C. Hill; Andrew J. Tatem; Henrik Salje; Simon I. Hay; Heinrich H. Nax; Birgit Nikolay; Nuno Taveira; Donal Bisanzio; et al. (The Lancet Infectious Diseases, 2017)