A20-A28: Certain zoonotic bacterial diseases

A23: Brucellosis

Brucellosis is a bacterial infection caused by the Brucella species of bacteria. It's a group of conditions that generally spreads to humans from animals, often through consuming unpasteurized milk or undercooked meat, or through direct contact with infected animals. The infection may present with a range of symptoms that can include fever, sweats, malaise, anorexia, headache, and muscle, joint, or back pain. Some people may also experience more serious signs such as liver inflammation or infection of the heart’s inner lining. Brucellosis can be acute or chronic, with symptoms either appearing shortly after exposure or persisting for long periods. While the infection can affect anyone, it's more common in people who work with animals or animal products, especially in areas where livestock is more frequently infected.