Rafael Salvador Gonzalez Herrejón, Mexican dermatologist (Morelia, Michoacán State 04 December 1893 – San Jose de Costa Rica January 1965)

Demonstrated that pinta disease was a general and microbial–origin disease (1926-7)

With León Blanco & Perrín identified Treponema carateum that causes pinta

Improved the technique of curing tinea employing thallium acetate (1918-9) with international acceptance

Proved that the vitiligo was caused by a protozoa named Treponema pintoi