Brucellosis

Generalities
Agent	Bacteria: Brucella abortus (biovars 1-6,9) Brucella melitensis (biovars 1-3), Brucella suis (biovars 1-5), Brucella canis, B. ceti, and B. pinnepedalis
Incubation period	5-60 days (commonly 1-2 months)
Period of transmissibility	Rare person-to-person transmission: exposure to contaminated fomites, tissues or massive bleeding
Reservoir	- Cattle, goat, sheep, swine - Also: camel, bison, elk, equid, deer, dog, marine mammal...
Modes of transmission	- Consumption of unpasteurized dairy products - Contact through skin breaks with infected animal tissues (placenta, blood, abortion) - Airborne in pens, stables, laboratories, abattoirs - Accidental self-inoculation of animal vaccine
Clinical presentation	Systematic bacterial infection, with irregular fever
Resources
Case definition	MOPH circular no 55 (2007)
Forms	- General reporting form - Brucellosis investigation form
Data	Refer to "Surveillance data"