• Home

Home > Medical Reference > Encyclopedia (English)

Toggle: English / Spanish

Brucellosis

• Overview
• Symptoms
• Treatment
• Prevention

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

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 Fahrenheit. "Undulant" fever derives its name from this undulating or up-and-down fever.

• Review Date: 11/7/2005
• Reviewed By: Cyrus Badshah, M.D., Ph.D., Assistant Professor of Clinical Medicine, College of Physicians and Surgeons, Columbia University; Assistant Attending Physician, Department of Medicine, Division of Infectious Diseases & Medical Director, Chest (TB) Clinic and Directly Observed Therapy Program, Harlem Hospital Center. Review provided by VeriMed Healthcare Network.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is the first of its kind, requiring compliance with 53 standards of quality and accountability, verified by independent audit. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial process . A.D.A.M. is also a founding member of Hi-Ethics (www.hiethics.com) and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 1997-2007 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.