There are several types of brucellosis, but four primary ones that infect people: B. abortus, B. suis, B. canis, and B. melitensis. The first comes from cattle, the second from pigs, the third from dogs, and the fourth from sheep and goats.

PeopleImages / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.