Colli, a biochemistry professor at the U. of São Paulo (USP), received his PhD under the supervision of Isaias Raw and did postdoc work at PHRI, NYC, USA with M. E. Pullman (1966-1968) and M. Oishi (1968-1969). Returning to Brazil in 1970, he established a group, at the Ins. of Chem. (IQUSP), to work with Molecular Parasitology, particularly with Trypanosoma cruzi, the agent of Chagas' disease. He was dean of IQUSP twice, and of the Butantan Inst. (the Snake Farm). He was pres. (2006-2009) of the Brazilian Technical Committee on Biosafety (CTNBio). He received the title of Doctor (h.c.) from the U. of Buenos Aires, the Great Cross Medal of the Natl. Order of Scientific Merit from the Brazilian govt. and is a member of the Brazilian Acad. of Sciences. In 2014 he was awarded the Almirante Álvaro Alberto Prize for Science and Techn., the most prestigious scientific prize in Brazil. Since 2003 he is an Associate to the Science Director of FAPESP for the areas of Health and Biology.