More than one billion people are affected by one or more of the world's neglected tropical diseases. In Côte d'Ivoire, five neglected tropical diseases constitute a public health concern because of the serious socio-economic impact.  USAID works alongside the Ministry of Health and Public Hygiene in the fight against neglected tropical diseases including: lymphatic filariasis or elephantiasis, soil-transmitted helminthiasis, schistosomiasis, onchocerciasis and trachoma.