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;
Pragas e as epidemias na África Ocidental, Camarões, Nigéria, Sudão do Sul, Chade, República Democrática do Congo, Costa do Marfim, Etiópia, Níger, Uganda, Afeganistão, Bolívia, Haiti, Salvador, Honduras, Guatemala e Nicarágua;