1. **Parvovirus**: A highly contagious and potentially fatal virus that affects a dog's gastrointestinal tract. Symptoms include vomiting, diarrhea, lethargy, and loss of appetite.
2. **Kennel Cough**: A respiratory infection that causes a persistent cough. It is highly contagious and often spread in places where dogs are in close proximity, like boarding facilities.
3. **Lyme Disease**: Transmitted through tick bites, this bacterial infection can cause fever, joint pain, and lethargy.
4. **Canine Distemper**: A viral disease that attacks the respiratory, gastrointestinal, and nervous systems. It can be deadly, especially in puppies.
5. **Heartworm**: A serious and potentially fatal disease transmitted through mosquito bites. It affects the heart and lungs of dogs.
6. **Rabies**: A viral disease that affects the nervous system and is fatal if not treated promptly. It is usually transmitted through the bite of an infected animal.
Regular veterinary check-ups, vaccinations, and preventive measures like tick and flea control can help protect your dog from these diseases.
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