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Texas Leads Nation in Positive Heartworm Cases

Here Is How to Protect Your Pet Now

Heartworm disease has always been a threat in the South, but Texas is now leading the nation in positive cases. Mosquito season is longer, the climate is warmer, and pets are being exposed at higher rates than ever before. Even indoor pets are testing positive. That reality has pushed many pet owners to search for “heartworm testing near me as they look for reliable heartworm protection that does not break the budget.

At TCAP, we see the impact of heartworm disease every week. The good news is that prevention is simple, safe, and far more affordable than treatment. If you have been putting off your pet’s annual heartworm test or monthly prevention, this is the time to act.

How Heartworm Spreads in Texas (Indoor Pets Are at Risk Too!)

Heartworm is carried by mosquitoes. It takes only one bite for a pet to become infected. Texas has one of the highest mosquito populations in the country, which is why our state consistently ranks at the top for heartworm cases.

Many owners assume their pets are safe because they stay indoors or rarely visit public places. Unfortunately, mosquitoes do not care. They enter homes through open doors, torn screens, garages, and even on clothing. Indoor cats and dogs test positive every year. If a mosquito can reach your pet, your pet can get heartworm disease.

  • Mosquitoes enter homes easily
  • Indoor cats are at high risk because they rarely show symptoms until the disease is advanced
  • Dogs that only go outside for quick potty breaks are still exposed
  • Heartworm has been diagnosed in pets that never leave the house

If you have ever wondered whether your indoor pet needs protection, the answer is yes. Heartworms do not require outdoor exposure or contact with other animals. It only requires a single mosquito.

This is why veterinarians across the state stress the importance of annual testing and year‑round heartworm protection. Skipping even a few months of protection can leave a pet vulnerable.

Why Annual Heartworm Testing Matters

Heartworm disease is silent in the early stages. Most pets show no symptoms until the worms have already caused internal damage. An annual test is the only way to catch an infection early.

TCAP offers heartworm testing for only $20 at all of our vaccine clinics. (During our May 2026 special, the test is half price at $10 when you purchase a full year of heartworm prevention at the same visit!) This makes TCAP one of the most affordable options for pet owners searching for low cost vet clinics.

Affordable Heartworm Protection at TCAP Clinics

Preventing heartworm disease is far easier and far less expensive than treating it. TCAP carries two trusted heartworm protection options in our clinics that won’t break the bank.

Triheart Plus for Dogs

A monthly chewable that protects against heartworms, roundworms, and hookworms. Price at TCAP: $30 to $40 for a 6‑month supply

Senergy for Cats and Dogs

A topical product that protects against heartworms, fleas, ear mites, and some intestinal parasites. While TCAP can provide heartworm prevention for cats, we do not heartworm test cats. Price at TCAP: $50 for a 3‑month supply

Online Convenience Options

If your pet has already had a negative heartworm test from TCAP and you simply need to refill their heartworm prevention, you have the choice of visiting a clinic for a refill or purchasing your refill online from the comfort of your home!

The TCAP Med Store offers the same in-clinic options of Senergy and Tri-Heart, with the added options of Simparica Trio, Heartgard Plus, Advantage MultiTrifexis, and more! 

With free shipping on all orders over $60 and lower prices than any of our online competitors, TCAP offers you the best, low-cost options for in-clinic or at-home purchasing.

Visit TCAP for Low Cost Heartworm Testing and Heartworm Protection

If you want to protect your pet and avoid the rising number of heartworm cases in Texas, TCAP is here to help. Our vaccine clinics offer:

  • $20 heartworm testing
  • Affordable heartworm prevention for cats and dogs
  • No exam fee for vaccine clinic services

TCAP is the affordable vet service near you. Don’t spend hundreds on heartworm testing and prevention when TCAP offers the low-cost option at all of our DFW area clinics.

Heartworm disease is preventable. Texas mosquitoes are not going away. Now is the time to test, protect, and stay ahead of the risk.

Visit a clinic today for your low-cost heartworm test and get your pet on the prevention medicine they need.

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