Protecting your Dog from Heartworm
Canine heartworm disease is caused by a large white worm called Dirofilaria immitis, and is transmitted to dogs through mosquito bites. When a dog is infected, adult worms mature and live in the dog’s heart and adjacent blood vessels. Their presence interferes with normal blood circulation and heart function and can cause serious illness. The good news is that heartworm infection is effectively prevented through regular testing and the use of topical or oral medications.
Puppies should be started on heartworm preventative treatment by six to eight weeks of age and all dogs should receive preventive medication throughout mosquito season in their region. In warm areas of the country, year-round treatment is recommended. And, there is an added benefit to using preventive heartworm medications - many heartworm preventatives also protect your dog against the most common intestinal parasites!
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