Skip to Main Content
Ask About Financing


Does My Dog Need A Rabies Vaccine Every Year?

Rabies is a life-threatening disease. The best way to protect your dog and your family from rabies are to have them vaccinated. Our Boulder County veterinarians explain more about this important vaccine today, including when your dog should get a booster shot.

What is rabies? 

Rabies is a virus that can affect humans and animals alike. The virus is spread through direct contact with an infected animal's saliva or brain tissue. This disease is typically transmitted to humans by being bitten by a rabid animal.

Rabies is a life-threatening disease. There are no tests that can be performed on a living person or animal to determine if they are infected, and the disease is almost always fatal once symptoms appear.

Vaccination of dogs is required by law in most states. If your dog isn't up to date on their rabies vaccine and is bitten by an animal, state law may require your pet to be quarantined for an extended period or even euthanized to protect other animals and people.

This is why it's essential to keep your dog's vaccinations current. 

How often does my dog need to be vaccinated for rabies?

The mandatory rabies vaccination schedule for dogs varies by state. In most states, your puppy will receive their first vaccination when they are between 14 and 16 weeks old, followed by a booster shot one year later.

After that, your dog should receive a rabies booster every 1-3 years, depending on state law and the type of vaccine used. 

Your veterinarian is your best resource for how often your pup should receive booster vaccinations. 

Why are rabies boosters required?

Vaccinations tell the body how to recognize the disease and create an immune response that will target and destroy the virus should it enter your dog's body. 

Over time, this immune response wanes and isn't as effective. Booster vaccines re-build your dog's immunity to ensure they stay protected. 

Can a vaccinated dog get rabies?

Rabies vaccinations are very effective, but no vaccine can guarantee 100% protection. So while the risk of a vaccinated dog contracting rabies is extremely low, it is still a possibility. 

The best prevention is to keep up to date on your dog’s rabies vaccines throughout their life.

Are there any side effects of the vaccine?

After the vaccination, many dogs will experience mild discomfort or swelling at the vaccination site, as well as a slight fever and exhaustion. This is perfectly normal and usually passes in a day or two. If the side effects last longer than two days or worsen, you should seek medical advice from your veterinarian.

For a few weeks after the injection, the injection site may be firm and swollen. It's time to take your dog to the vet if the swelling lasts longer than three weeks or gets worse.

Your dog may experience more serious side effects in rare cases. These usually happen within minutes to hours of receiving the vaccine and necessitate prompt medical attention. If your dog exhibits any of the following symptoms, you should take them to the nearest emergency veterinarian as soon as possible:

  • Vomiting or diarrhea
  • Hives
  • Swelling of the muzzle and around the face, neck, or eyes
  • Severe coughing or difficulty breathing, and even collapse.

Overall, the rabies vaccine is extremely safe and an important factor in maintaining your pet's overall health. 

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

Is your dog due for a rabies booster? Contact our Boulder County vets today to book an appointment. 

New Patients Welcome

Lafayette Companion Animal Hospital is accepting new patients! Our experienced vets are passionate about the health of Boulder County companion animals. Get in touch today to book your pet's first appointment.

Contact Us

Contact (720) 214-0270