The data displays the number of countries worldwide that required preventative chemotherapy for select neglected tropical diseases as of 2015. As of that time, around 42 countries needed preventative chemotherapy for trachoma.
Soil-transmitted helminthiases | 102 |
Lymphatic filariasis (elephantiasis) | 54 |
Schistosomiasis (snail fever) | 52 |
Trachoma | 42 |
Onchocerciasis (river blindness) | 31 |