Just like humans, dogs are susceptible to bacteria, disease and infection, so it’s important to get them vaccinated at an early age. The time at which puppies are able to respond to a vaccine differs per liter but can be done as early as six weeks of age. The absolute latest that a puppy should be vaccinated is 18 weeks of age.

5 Weeks:


This is the common name applied to all viruses in the Parvoviridae family. It is a highly contagious and viral disease that can produce a life-threatening illness for dogs. The intestinal tract is most severely attacked with this virus. Can be transferred dog to dog, human to dog or dog to human.

6 & 9 Weeks:


A viral disease causing fever, coughing and catarrh. Distemper is highly contagious with no known cure.


Hepatitis means inflammation of the liver. This disease is caused by a virus and not infectious to people or cats. Dogs often catch this disease by inhaling or eating urine, nasal or eye secretions of a dog that is infected.


A highly contagious respiratory virus, also known as canine cough. There are two syndromes for canine cough, mild and severe.  


This is the second leading viral cause of diarrhea in puppies. Coronavirus are not generally associated with high death rates, The most common cause is contact with an infected dog’s feces.

12 Weeks & Older:

Second Combination Vaccination


The primary way rabies is transmitted is through a bite from an animal carrying the disease. It does not have to be another dog, it could be a fox, raccoon or other common backyard animals. Because of vaccination, rabies has seen huge drops in infected dogs.  
It is important to maximize the health of your furry friend by getting them vaccinated. Taking your dog to the vet regularly can help ensure that you are keeping up with your dog’s vaccinations. Visit Dr. Speight’s veterinarian clinic here in Fort Collins today!