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Instituto Butantan (in modern Portuguese, Instituto Butantã, pronounced [ĩʃtʃiˈtutu butɐ̃ˈtɐ̃]) is a Brazilian biologic research center located in Butantã, in the western part of the city of São Paulo, Brazil. Instituto Butantan is a public institution affiliated with the São Paulo State Secretariat of Health and considered one of the major scientific centers in the world. Butantan is the largest immunobiologicals and biopharmaceuticals producer in Latin America (and one of the largest in the world). It is world-renowned for its collection of venomous snakes, as well as those of venomous lizards, spiders, insects and scorpions. By extracting the reptiles' and insects' venoms, the Institute develops antivenoms and medicines against many diseases, which include tuberculosis, rabies, tetanus and diphtheria. From Wikipedia