Abstract
Snake envenoming is a public health problem in many countries. In Brazil, more than 170 thousand cases have been recorded, being the majority due to snakebites from Bothrops genus. However, the Crotalus genus is the most lethal one. Snakes from this genus are popularly known as rattlesnakes, and there is only one species (Crotalus durissus) in the Brazilian territory. The C. durissus is …