Choosing the Safest Vaccines for Your Pet

Vaccines are one of the most notable, life-saving medical innovations. (Thank you, Dr. Jenner.) They rank right up there with anesthesia, antibiotics, and hand washing. (Thank you Drs. Morton, Fleming, and Lister.) The ability to administer a small dose replica of a deadly germ, to teach our immune systems how to fight off the true threat, is truly amazing science. People no longer fear dying of small pox or polio. Similarly, we can rest assured that our beloved pets are protected from parvo, distemper, and several other diseases.

How do vaccines work? 

A vaccine works by activating the immune system to produce antibodies, which can fight off the viruses or bacteria that cause disease. The activated immune system works hard to prepare its response to invasion. Ideally, the white blood cells work without incident, and there are few outward signs of the important accomplishments going on within the immune system. Sometimes, however, mild side effects are noticeable.

What are the side effects? 

Mild fever and lethargy may accompany vaccination, or sometimes soreness at the injection site. Occasionally an immune system can become over-activated, and over-respond to a vaccine. This can result in an allergic reaction, anaphylaxis (which can be life-threatening), and severe illness. Felines, being medically peculiar in almost every way, actually risk developing cancer from certain vaccines.

How can vaccine risks be mitigated? 

Luckily, thanks to vaccine science advancements, it's possible to mitigate risks and unwanted side effects. Scientists now use recombinant DNA technology, viral engineering, and a host of other advanced techniques to make safer, more effective vaccines.

For example, some of today's re-engineered vaccines no longer require harsh additives to secure immunity. For cats, the risk of developing cancer from one of these milder vaccines is nearly eliminated. You might be aware of the state-mandated rabies shot, with required renewal for cats every three years. This three-year vaccine carries with it a high cancer and vaccine reaction risk. Alternatively, we now have access to a much gentler rabies shot, which lasts for one year, satisfies the state requirement, and massively reduces the risk of problems. (See Daisy's Story in the sidebar.)

What's the right vaccine choice? 

Our clinic is dedicated to providing only the safest, gentlest, and most effective vaccines. We understand that some of the improved vaccine technology comes with a relatively higher price tag, but we feel that it's a worthwhile exchange for fewer reactions and cancer risks.

Our pets are family members; naturally, we want what is best for them. Besides choosing safer vaccine options, you can reduce risks by making informed choices about which diseases warrant vaccination (in light of your pet's lifestyle), and also by timing vaccines appropriately. Ask your veterinarian to explain both considerations.