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colspan=2 style="text-align: center
rgb(220,235,245)" | Brucella suis
Brucella suis culture
Brucella suis culture
colspan=2 style="text-align: center
rgb(220,235,245)" | Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Alpha Proteobacteria
Order: Rhizobiales
Family: Brucellaceae
Genus: Brucella
Species: B. suis
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rgb(220,235,245)" | Binomial name
Brucella suis
Brucellosis in Wild Swine, distribution in USA


     Serologic evidence
     Confirmed infections

Swine brucellosis is a contagious disease in pigs caused by the bacteria, Brucella suis. The disease spreads in semen during breeding and by ingestion, inhalation, or eye contact with bacteria in milk, reproductive fluids, placenta, aborted fetuses and urine. The disease primarily occurs in adult pigs which show non-specific infertility, abortion or lack of sexual drive. Boars can show signs of orchitis, lameness, arthritis, abscesses and posterior paralysis. There is no treatment for the disease and no effective vaccine.[1]

Use as a biological weaponEdit

The U.S. Army Chemical Corps selected Brucella suis as its first standardized biological agent in 1949.[2] The M33 cluster bomb was designed to be used with B. suis.[2]

See alsoEdit


  1. "Brucellosis in Pigs". The Merck Veterinary Manual. 2006. Retrieved 2007-06-08. 
  2. 2.0 2.1 Croddy, Eric and Wirtz, James J. Weapons of Mass Destruction: An Encyclopedia of Worldwide Policy, Technology, and History, (Google Books), ABC-CLIO, 2005, p. 75, (ISBN 1851094903), accessed November 13, 2008.

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