Description
Brucella spp. are small, Gram-negative, intracellular coccobacilli causing brucellosis (contagious abortion/bang’s disease) in cattle. The primary species in bovines is Brucella abortus, with occasional B. melitensis or B. suis. It targets reproductive organs, leading to abortion (typically 5–8 months gestation), retained placenta, weak calves, infertility, and orchitis/hygromas in bulls.
