You can't catch AIDS - you can only catch HIV (the virus which causes AIDS).
The human immunodeficiency virus (HIV) only affects humans. You can't catch HIV from animals and animals can't be infected with it / be carriers of it.Unless you found out that you had it before 1985 when they didn't test the blood donations for the HIV/AIDS viruses.
Simian AIDSA similar virus, Simian Immunodeficiency Virus, or SIV, exists in certain species of monkeys and apes. It is from SIV infections in humans that HIV came into existence in the first half of the 20th century. SIV infections in humans are rare, and probably due to exposure to the blood of the infected animals. Unless you are exposed to certain species in Africa or in laboratories, you won't get infected from monkeys.