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Brucellosis
Definition:
Brucellosis is a disease caused by contact with animals carrying the brucella bacteria. Alternative Names:
Rock fever; Cyprus fever; Undulant fever; Gibraltar fever; Malta fever Text Continues Below
Causes, incidence, and risk factors:
Brucella bacteria infect cattle, goats, camels, dogs, and pigs. Transmission of the disease to humans occurs by contact with infected meat, contact with the placenta of infected animals, or eating or drinking unpasteurized milk or cheese. The illness may be chronic and persist for years. Brucellosis is rare in the United States (except in the western states) and in visitors or immigrants from countries where it is prevalent (Spain, Mexico, South America, the Middle East). Approximately 100 - 200 cases occur in the U.S. each year. People working in jobs requiring frequent contact with animals or meat -- such as slaughterhouse workers, farmers, and veterinarians -- are at high risk. Acute brucellosis may begin with mild flu-like symptoms or with fever, chills, sweating, muscle aches (myalgia), joint aches (arthralgia), and malaise. Classically, fever spikes occur every afternoon to levels around 104 degrees Farenheit. "Undulant" fever derives its name from this undulating or up-and-down fever.
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