If you live in Central Texas, you already know that winter doesn’t always feel like winter in the northern part of the country. While temperatures may occasionally dip and mild days can arrive throughout the season, this doesn’t stop mosquitoes and other pests from disappearing for months at a time. For pet parents, this is an important reminder: Central Texas dogs don’t get a true winter break from heartworm risk or many of the parasites and small critters that can cause problems. Keeping your dog protected year-round is one of the simplest ways to help safeguard their health.
Why Are Heartworms a Concern in Central Texas?
In Central Texas, there isn’t a ‘mosquito-free’ season, so the threat of heartworm is year-round. Heartworm disease is caused by a parasite called Dirofilaria immitis and is spread through the bite of an infected mosquito. Once transmitted, the parasite can develop into adult worms that live primarily in the blood vessels of the lungs and can cause serious damage to the heart and cardiovascular system. The tricky part is that heartworm disease can be difficult to detect in its early stages. Dogs may appear completely healthy for months after infection, while the worms continue developing inside the body. Texas veterinarians emphasize that there can be a delay of up to six months or more before an infection becomes detectable, making prevention especially important.
Texas Doesn’t Really Have a Mosquito Winter
In colder climates, pet owners may think of mosquitoes as a strictly spring-and-summer problem. Central Texas is different. Mild winter weather can allow mosquitoes to remain active, and even when a cold snap reduces adult mosquito activity, mosquito eggs can survive and hatch when favourable conditions return. That means putting your dog’s heartworm medication on hold during the winter can create a gap in protection precisely when you may not realize mosquitoes are still around. This is why dogs should be maintained on heartworm prevention year-round, regardless of lifestyle. Even dogs that spend most of their time indoors aren’t completely protected. Mosquitoes can enter homes, so being an indoor dog doesn’t eliminate the risk of a bite.
It’s Not Just Heartworms
One of the biggest benefits of maintaining a consistent parasite-prevention routine is that many veterinarian-recommended products protect against more than heartworms.
Depending on the product prescribed for your dog, parasite prevention may also help protect against certain intestinal worms, fleas, ticks or other parasites. Your veterinarian can recommend a prevention plan based on your dog’s lifestyle, age, health, travel habits and exposure to other animals and outdoor environments.
That’s particularly important in Central Texas, where dogs may encounter plenty of potential hosts for parasites and small critters throughout the year, from mosquitoes and fleas to ticks and wildlife. Remember, your dog doesn’t have to spend hours hiking through the countryside to encounter parasites; a backyard walk, a neighbourhood walk, a dog park, or a simple trip outside can provide opportunities for exposure.
What About Annual Heartworm Testing?
Prevention and testing work together. Testing your dog even if they’re on preventatives can help keep you informed. Testing can help your veterinarian identify an infection and determine whether your dog’s prevention plan is working as intended. The FDA also recommends testing dogs and maintaining year-round prevention, noting that no preventive medication is 100% effective. If your dog has missed doses or you’ve allowed their prevention to lapse, don’t simply assume you can restart it without checking with your veterinarian. Depending on the circumstances, your vet may recommend testing before restarting prevention again.
Year-Round Protection Is the Easier and Most Responsible Choice
Central Texas may have beautiful winters, but that comes with a downside: parasites that live and survive year-round. Keeping your dog on a veterinarian-recommended heartworm and parasite-prevention plan year-round can help protect them during summer heat, fall adventures, mild winter days, and everything in between. After all, when it comes to heartworm disease, remember that prevention is far easier than treatment. And in Central Texas, there’s no need to wait for mosquito season to remind you, parasite protection is a year-round job.
Always speak with your veterinarian about the heartworm and parasite-prevention products and testing schedule that’s appropriate for your individual dog.
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