- The disease in humans caused by bovine TB (bTB) and human TB bacteria are identical with respect to clinical symptoms and lesions and would require complex tests to distinguish them.
- The importance of human TB bacterium as a reverse zoonosis (causing infection in animals) is also gaining prominence with reports humans and bovines respectively having mixed infections with both bTB and human TB organisms.
- There may be no symptoms till the disease is quite advanced. The common symptoms are cough, loss of weight, poor appetite etc.
- Humans get the infection by drinking contaminated milk from infected animals or by close contact with infected animals.