Canine Heartworm Antigen Test — A Vital Tool for Early Detection
Oct 30, 2025
Heartworm disease (caused by Dirofilaria immitis) is one of the most serious parasitic infections affecting dogs worldwide. Transmitted through mosquito bites, this disease can cause severe and potentially fatal damage to the heart, lungs, and blood vessels if left undiagnosed or untreated.
💡 Understanding the Disease
Once infected, microscopic larvae (microfilariae) develop into adult worms that live within the pulmonary arteries and heart chambers. Adult heartworms can reach up to 30–40 cm in length and survive for several years, leading to chronic cardiovascular stress and reduced quality of life for the affected animal.
🔬 The Role of Antigen Testing
The Canine Heartworm Antigen Test is the most reliable method for detecting active infections in dogs.
This test detects specific antigens released by adult female heartworms, allowing veterinarians to identify infections even before clinical signs appear.
Key advantages of antigen testing include:
- High sensitivity and specificity – Accurate detection of active infections caused by adult worms.
- Rapid results – Early and convenient screening during routine veterinary check-ups.
- Essential for prevention programs – Supports timely treatment and ongoing monitoring in endemic regions.
🧩 When and How to Test
Veterinarians recommend annual heartworm screening for all dogs, especially in mosquito-prone regions. Testing is typically done 6 months after the start of preventive medication or after potential exposure, ensuring that the test accurately reflects adult worm presence.
💊 Prevention and Control
While the antigen test plays a crucial diagnostic role, prevention remains the best strategy. Regular administration of preventive medications, mosquito control, and annual testing form the foundation of effective heartworm management.
🧪 PetX Heartworm Rapid Test
J&G's PetX Heartworm Rapid Test provides a fast, highly sensitive, and specific solution for heartworm detection. Designed for both clinical and field use, it enables veterinarians to screen dogs efficiently and confidently, ensuring early intervention and better outcomes.
Protect your patients - detect early, prevent effectively.
Learn more about our rapid veterinary diagnostic solutions at 🌐 www.jg-biotech.com

