What is the most common clinical finding in livestock suspected of brucellosis?

Brucellosis in livestock is primarily characterized by reproductive issues, and one of the most significant clinical signs is abortion, especially during the late stages of pregnancy. This occurs as a result of the bacteria infecting the uterus, leading to the loss of the fetus. In cattle, for example, abortions can happen throughout the last trimester, and once a herd is infected, abortions can recur in subsequent pregnancies.

While fever, weight loss, and skin lesions can be associated with various diseases in livestock, they are not as specifically indicative of brucellosis as abortions are. The high incidence of abortions in infected herds is a key factor in identifying an outbreak and is often the primary reason for seeking veterinary care in suspected cases. These reproductive challenges not only impact the health of the animals but can also significantly affect the economic viability of livestock operations due to loss of young stock and breeding potential. Understanding this key clinical finding is essential for effectively managing and controlling the spread of brucellosis in livestock.