What is the main causative agent of tuberculosis in nonhuman primates?

The main causative agent of tuberculosis in nonhuman primates is Mycobacterium tuberculosis. This bacterium is known for causing pulmonary and extrapulmonary tuberculosis in various mammals, including humans and nonhuman primates. Mycobacterium tuberculosis is highly infectious and can be transmitted through aerosols, making it a significant concern in research and veterinary settings.

Nonhuman primates can serve as important models for understanding human tuberculosis and studying the disease's progression and treatment. Recognizing Mycobacterium tuberculosis as the causative agent helps ensure proper diagnostic measures, containment, and treatment protocols are implemented to protect both the animals and any personnel interacting with them.

The other organisms listed, such as Staphylococcus aureus, Escherichia coli, and Brucella abortus, are associated with different diseases and infections, thus not relevant to the specific context of tuberculosis in nonhuman primates.