5. Brucella canis
This bacterium infects dogs and affects their reproductive systems. It is associated with infertility in both sexes. In females, the bacterial infection can result in endometriosis and spontaneous abortions. The bacteria are spread to humans via the vaginal secretions and urine of an infected dog. Once the bacteria enter the human body, the resulting infection will include symptoms such as fever and weight loss.
There is also a possibility of swelling of the lymph nodes, spleen, and liver. Antibiotic treatment is necessary to get rid of the infection for both the dogs and their owners. After handling a pet dog, especially a female who has had stillborn puppies, the owner should wash their hands thoroughly. Infections in humans are relatively rare, but simple precautions should still be taken. Dog breeders and their employees should be extra vigilant as should those who work at kennels and dog boarding facilities.