What Is Canine Tuberculosis

Canine tuberculosis is a chronic, slowly progressive infection caused by Mycobacterium tuberculosis complex bacteria. Dogs usually catch it from infected people, cattle, or cats through the air or contaminated food and water, and it can pass to humans as well. Early signs are vague - odd appetite, tiredness, and gradual weight loss - but as the disease advances, dogs may develop a persistent cough, digestive upset, abdominal swelling, or skin ulcers depending on which organs are affected. Because the infection forms hardened granulomas in tissues, it is difficult to cure, and open or positive cases are generally humanely euthanized to protect public health. Strict hygiene and prompt testing of sick animals are the main defenses.

Canine Infectious Hepatitis: Can It Be Treated

Canine infectious hepatitis is an acute, often severe viral disease of dogs caused by canine adenovirus type 1 (CAV-1). It spreads through urine, saliva, and nasal discharge and hits weaned puppies hardest, sometimes with no warning signs. Typical signs include a fever that rises then falls, lethargy, vomiting, diarrhea, and a characteristic cloudy "blue eye" in about a quarter of recovering dogs. While there is no direct cure that eliminates the virus, most dogs recover with prompt supportive care such as fluids, liver protection, and antibiotics to control secondary infection. The good news is that the disease is highly preventable through routine vaccination, with puppy shots given at 8-9 and 10-12 weeks and annual boosters for adults.