The recent outbreak of the wild-type yellow fever disease contributes to the self-imposed stance of those affected who assume that if monkeys are killed, the contagion and disease combat would be solved. However, apes are victims of the disease, just like humans, which can also kill them. Increase of murders of monkeys, they are not disease causative agents and the only transmitter is mosquito. The present study aims to raise the awareness of law enforcers and to develop a substantial analysis of the outbreak of yellow fever and the increase in murders of monkeys. The applied method was the legal deductive, based on the interpretation of the legislation, jurisprudence and doctrines. It is concluded that the said infectious disease is caused by a flavirus and is transmitted in forest areas mainly by the Haemagogus mosquito of the genus Sabethes, so that the rights of the animals should be protected, since they, like humans, also have the right to life and protection and shouldn't it be treated as objects, but as a subject of rights