Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Credit: Risk factor for trachoma transmission: flies on boy's face. H Kuper. Source: Wellcome Collection.
Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Credit: Risk factor for trachoma transmission: flies on boy's face. H Kuper. Source: Wellcome Collection.