Where is brucellosis primarily found?

Brucellosis is primarily associated with livestock and is especially prevalent in regions where livestock farming is a significant part of the economy. The Greater Yellowstone Area is known for its large populations of wildlife such as bison and elk, which can carry the Brucella bacteria. This region also has domestic livestock, creating ideal conditions for the transmission of brucellosis between wildlife and farm animals. The intermingling of wildlife and livestock increases the risk of outbreaks, making this area a critical focus for monitoring and control efforts related to brucellosis.

Other regions mentioned may have livestock, but they do not have the same combination of wildlife and domestic animal populations that leads to increased transmission risk. As a result, the Greater Yellowstone Area stands out as the most significant location for brucellosis occurrences.