Diseases·28 January 2026·4 min read
Heartworm: The Silent Disease That Mosquitoes Spread
It is here, it is fatal, and it is preventable for the cost of a coffee a month.
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What heartworm is\n\nA worm transmitted by mosquito bite that grows up to 30cm long inside the heart and pulmonary arteries. Causes coughing, exercise intolerance, eventual heart failure.\n\n## Prevalence in India\n\nWidespread, especially coastal and humid regions including Kolkata. Cases are routinely diagnosed at SenVetCare.\n\n## Prevention\n\nMonthly oral preventive (ivermectin-based) OR 6-monthly injectable. Both are highly effective when given on schedule.\n\n## Why testing first\n\nGiving preventive to a heartworm-positive dog can cause severe reaction. We test annually before refilling preventive.\n\n## Treatment\n\nExpensive (Rs. 30,000–60,000+), painful, multi-month protocol. Prevention is dramatically cheaper and safer.\n\nBook a heartworm test on +91 98711 55162.
Frequently asked
Yes — mosquitoes enter homes. Indoor dogs are still at risk.
Cats can get heartworm but are atypical hosts. Discuss with us if your area has high prevalence.
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