People Costa Rica Alfonso Trejos Willis peoplepill id: alfonso-trejos-willisATW 2 views today 2 views this weekCosta Rican microbiologistAlfonso Trejos WillisBiographyListsAlso ViewedListsAlfonso Trejos Willis is in following listsBy field of workNotable Costa Rican biologistsGender:Male, Born in:Years 1900 to 1929Notable Costa Rican scientistsGender:Male, Born in:Years 1900 to 1929By work and/or countryNotable Costa Rican BiologistsGender:Male, Born in:Years 1900 to 1929Notable Costa Rican MicrobiologistsGender:Male, Born in:Years 1900 to 1929From our partnersSponsoredAlfonso Trejos Willis