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Since the invention of an animal vaccine for brucellosis in the 1970s, the disease has become somewhat rare in the United States. Yet the vaccine cannot prevent all incidence of brucellosis. In 1989, the Centers for Disease Control reported only 95 total cases in the United States. Most of these were reported in persons who worked in the meat processing industry. Brucellosis remains a risk for those who work in close contact with animals, including veterinarians, farmers, and dairy workers.

Brucellosis also remains a risk when animal products from foreign countries are imported into the United States. Outbreaks of brucellosis have been linked to unpasteurized feta and goat cheeses from the Mediterranean region and Europe. In the 1960s, brucellosis was linked to bongo drums imported from Africa: drums made with infected animal skins can harbor Brucella bacteria, which can be transmitted to humans through cuts and scrapes in the human skin surface.

In the United States, preventive measures include a rigorous vaccination program that involves all animals in the meat processing industry. On an individual level, people can avoid the disease by not eating animal products imported from other countries. If this is not possible or desirable, make sure that imported cheeses have been made with pasteurized milk. If the package does not indicate pasteurization, do not eat the cheese.



Prescott, L., J. Harley, and D. Klein. Microbiology. 5th ed. New York: McGraw-Hill, 2002.

Thimm, Bernhard M. Brucellosos: Distribution in Man, Domestic, and Wild Animals. Berlin: Springer-Verlag, 1982.


Kiel, Frank W., and M. Yousouf Khan. "Brucellosis in Saudi Arabia." Social Science and Medicine 29 (1989): 999-1001.

Olle-Goig, Jaime E., and Jaume Canela-Soler. "An Outbreak of Brucella melitensis. Infection by Airborne Transmission Among Laboratory Workers." American Journal of Public Health 77 (March 8, 1987): 335-38.

Wright, Paul. "Brucellosis." American Family Physician 35 (May 1987): 155-59.

Kathleen Scogna


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—An immune response in which cells infected with bacteria clump together. Granuloma formation is typical of tuberculosis and brucellosis.

Lymph nodes

—Small, bean-shaped structures located along the lymphatic vessels of the body. Lymph nodes function in the immune response to protect the body against foreign cells.


—The process in which milk or either dairy products are heated to a high temperature in order to kill disease-causing bacteria.

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Science EncyclopediaScience & Philosophy: Boolean algebra to Calcium PropionateBrucellosis - Brucella Species, Symptoms And Treatment Of Brucellosis, Prevention - Characteristics of Brucella