Brucellosis is acquired from drinking unpasteurized milk from infected cattle, goats, and sheep. People working with animals are also at risk

After 1-3 weeks or longer, symptoms develop including malaise, headache, high sweats, anorexia and generalized aches.

Chronic Brucellosis involves muscle aches, easy fatigability, fever and depression.

Human Brucellosis is acquired from ingesting infected milk or milk products from cattle milk and is caused by brucella abortus. Occasionally acquired via respirations and veterinarians can catch it through skin abrasions.

Brucella melliteis affects goats, sheep and camels.

Brucella Suis affects pigs.
Symptoms include: dramatic fever, sweats, aches and pains. Incubation time to illness is 1-3 weeks.Fever can be intermittent. Lymph nodes, spleen and liver can get enlarged. More chronically the disease may progress to cause arthritis, bone infection, meningitis and heart disease.

Disease is diagnosed from serology and biopsy.

Treatment is difficult and could involve over 6 weeks of antibiotics.
The best prevention is mild pasteurization of milk.

Brucellosis links
Center for Disease Control CDC http://www.cdc.gov/ncidod/dbmd/diseaseinfo/brucellosis_g.htm

eMedicine http://www.emedicine.com/emerg/topic883.htm http://www.aphis.usda.gov/vs/nahps/brucellosis/ Vetinfo http://www.vetinfo.com/dbrucelos.html
Utah Health http://hlunix.hl.state.ut.us/els/epidemiology/epifacts/brucello.html