Abortus

Contagious abortion, often occurring in the last trimester of pregnancy, is the most common sign.

Reduced milk production and the birth of weak calves further compound agricultural losses. abortus

Efforts to manage B. abortus focus on surveillance, diagnostic testing, and vaccination. Contagious abortion, often occurring in the last trimester

Even with treatment, relapse occurs in 5–15% of cases due to the presence of "persister" cells that remain metabolically active within protective intracellular niches. Current Control and Prevention Strategies and vaccination. Even with treatment

In humans, it can cause a debilitating, chronic illness characterized by undulant fever, joint pain, and fatigue.

Humans typically acquire B. abortus through direct contact with infected animals or the consumption of .