
07/11/2025
Please see the informative summary of heartworm disease if you would like to understand why we do not have a risk in Teton Valley. Victor Vet recommends heartworm preventative for dogs that ever travel to warmer climates. Because the infective stage of the heartworm larva that is transmitted from dog to dog by mosquitos can only survive at temperatures that never go under 57 degrees for at least 2 weeks we do not, and likely will not, have a risk of transmission occuring locally. Another proven fact is that the larva will also die if it ever gets under 45 degress in a 45 day period. As our nights are cool in Teton Valley and Jackson Hole there is not a reason to prescribe local dogs preventative. Heartworm preventative monthly does have the benefit of also preventing many intestinal parasites and protecting dogs that travel east of wyoming or to the west coat from places that heartworm can be transmitted.
Victor Vet submits annual bloodwork on most of our canine patients over 7 years old and every sample is tested for heartworm and tick borne diseases including Lymes, Ehrlichia and Anaplasma. The vets in Jackson also participates in this long term blood test survey and we continue to affirm that those infections are not ever found in dogs without travel history.
We have and will continue to be vigilant and factual for any recommendations we make to protect our patients.
Heartworm: The Parasite - Veterinary Partner - VIN
Heartworm is a serious problem in many areas of the country. What questions do you have about the disease, its treatment and its prevention?