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Marisa K Ames
Researcher
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Jun 15, 2026
The State(s) of Heartworm Incidence: What does the latest AHS Survey Show? | VETgirl Veterinary Continuing Education Podcasts
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11:36Justine LeeHOST
I did want to ask, what were other important takeaways from the AHS incident survey? Yeah.

Marisa AmesGUEST
We really value what the veterinarians were saying regarding their explanation for why they think heartworm incidents went up or down.

Marisa AmesGUEST
So this is really important to help us, you know, how can we help the veterinarians and what barriers are they seeing? And, you know, when they, veterinarians that cited an increase in incidents in their area, weather was definitely a factor that was listed.

Marisa AmesGUEST
But more importantly than whether they were more likely to cite human factors such as failure to purchase heartworm prevention year round, or in some cases, concern about more clients not purchasing any prevention at all.

Marisa AmesGUEST
Veterinarians also noted that there are folks moving from veterinarians in areas where they have higher incidents, such as the Gulf Coast or Southeastern United States, seeing clients moving in from other areas like California or the Northeastern US where the clients aren't as educated and didn't realize their dog was supposed to be on prevention for heartworm.

Marisa AmesGUEST
So we're seeing human relocation as being one factor that veterinarians are noticing as a cause of increased incidents.

Marisa AmesGUEST
When veterinarians were citing a decrease in their area, they were citing client compliance and improvements in clients purchasing prevention.
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17:39Justine LeeHOST
What factors give you hope that heartworm incidence in the U.S. could potentially be significantly lower by then? Give us some positive news as we end this podcast.