Flea, Tick & Heartworm Dog and Cat Parasite Prevention for Harrisonburg, VA Pets

Parasites are more than just a nuisance—they can pose serious health risks to both pets and people. At Ashby Animal Clinic, we take a proactive approach to dog and cat parasite prevention, offering customized protection plans to keep your dog or cat safe year-round. From fleas and ticks to heartworms and intestinal parasites, we’re here to help you prevent the unseen before it becomes a problem.

Schedule a visit for your pet for parasite screening and to discuss the best prevention for their needs!

calico cat itching its ear

Fleas & Ticks: Small Pests, Big Problems

In the Shenandoah Valley, flea and tick season can start early and last well into the fall. These pests don’t just make pets itchy—they can transmit diseases like Lyme disease, ehrlichiosis, anaplasmosis, and tapeworms.

We recommend year-round flea and tick preventives for every dog and cat, even if they live primarily indoors. Fleas can hitch a ride on clothing or other pets, and ticks are common in wooded areas, grassy fields, and even your own backyard.

Mosquito on dog's nose

Heartworms & Mosquitoes: A Hidden Danger

Heartworm disease spreads through mosquito bites—and yes, infected mosquitoes are present in Harrisonburg. Even mostly indoor pets are at risk.

Heartworms damage the heart, lungs, and blood vessels and can be fatal if untreated. Treatment is costly and risky, especially in later stages.

The best part? Heartworm disease is 100% preventable. We recommend monthly prevention and annual blood tests for dogs. For cats, we’ll help you choose the right preventive care, as no treatment exists for infected cats.

Intestinal Parasites: The Invisible Threat

Roundworms, hookworms, whipworms, and tapeworms are common intestinal parasites that can be transmitted via contaminated soil, feces, or prey animals. Some of these parasites are zoonotic, meaning they can be passed from pets to people—particularly children and immunocompromised individuals.

Routine deworming and fecal testing help manage intestinal parasitic infections early. Puppies and kittens should be dewormed regularly starting at a young age, and adult pets should be tested at least once per year—or more frequently if they spend time outdoors or in group settings.

Why Routine Screening Matters Even When Your Pet Looks Fine

One of the most important parts of parasite prevention is routine testing. Many parasites—like heartworms or certain intestinal worms—don’t cause obvious symptoms until your pet is seriously ill. That’s why we recommend annual heartworm testing for all dogs, yearly fecal exams for all pets, and additional testing as needed based on lifestyle, travel, or health changes.

Catching problems early allows for faster, more effective treatment and helps protect the rest of your family—including your human ones.

woman opening parasite prevention pill for her dog

Year-Round Protection for Peace of Mind

At Ashby Animal Clinic, we tailor your pet’s parasite prevention plan based on their age, breed, lifestyle, and risk factors. Our veterinarians will walk you through product options, explain how they work, and make sure you feel confident protecting your pet at home.

If you have questions about flea and tick control, heartworm preventives, or deworming, give us a call! Together, we’ll keep your best friend healthy, happy, and parasite-free.