The <a href="https://en.wikipedia.org/wiki/2016_Central_Africa_yellow_fever_outbreak" class="extiw" title="w:2016 Central Africa yellow fever outbreak">2016 Central Africa yellow fever outbreak</a>. Reference:
<ul><li><a rel="nofollow" class="external text" href="http://www.promedmail.org/post/4308329">Yellow Fever - Africa (72): WHO</a>. <i><a href="https://en.wikipedia.org/wiki/ProMED-mail" class="extiw" title="w:ProMED-mail">ProMED-mail</a></i>.</li></ul>
Last update given in image.
<a href="//commons.wikimedia.org/wiki/User:Mikael_H%C3%A4ggstr%C3%B6m" title="User:Mikael Häggström">Mikael Häggström</a>
2016-07-01
<span class="int-own-work" lang="en">Own work</span>