epidemics and plagues in western Africa, Cameroon, Nigeria, South Sudan, Chad, the Democratic Republic of the Congo, Ethiopia, Ivory Coast, Niger, Uganda, Afghanistan, Bolivia, Haiti, El Salvador, Honduras, Guatemala and Nicaragua;
epidemiji fil-Punent tal-Afrika, il-Kamerun, in-Niġerja, is-Sudan t'Isfel, iċ-Ċad, ir-Repubblika Demokratika tal-Kongo, l-Etjopja, il-Kosta tal-Avorju, in-Niġer, l-Uganda, l-Afganistan, il-Bolivja, Haiti, El Salvador, il-Honduras, il-Gwatemala u n-Nikaragwa;