Microfilariae must pass through a mosquito to become infective larvae. When the infected mosquito bites another dog, the mosquito spreads the infective larvae to the dog through the bite wound. In the newly infected dog, it takes about 6 to 7 months for the infective larvae to mature into adult heartworms. 22 авг. 2019 г.
How do you prevent heartworms in dogs?
Heartworm preventives come in different forms, including monthly chewable pills and topical “spot on” medications, as well as an injectable medication that is given every 6 or 12 months. Heartworm preventives are available only by prescription from veterinarians.
What are the first signs of heartworms in dogs?
Signs of heartworm disease may include a mild persistent cough, reluctance to exercise, fatigue after moderate activity, decreased appetite, and weight loss. As heartworm disease progresses, pets may develop heart failure and the appearance of a swollen belly due to excess fluid in the abdomen.
What is heartworm disease in dogs and how is it prevented?
Heartworm disease is caused by a parasitic worm called Dirofilaria immitis. It isn't contagious, so a dog can't catch the disease simply from being near an infected dog. However, it can be passed through just one bite from an infected mosquito. After a mosquito bite, the heartworm life cycle begins.
How do dogs end up with heartworm?
Heartworm is an internal parasite that's transmitted through the bite of an infected mosquito. Just one bite is enough to spread the disease. After being bitten, heartworm larvae begin to develop in the tissue of your pet.
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