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Midway’s primary goal is to keep your pet as healthy as possible. But it is also important to us that our clients stay well informed about why we make certain recommendations about their health. Below is information from an article on WebMD about Heartworms in dogs. Please read it and feel free to contact us with any questions about Heartworms. To get your dog protected from Heartworm Disease, click the “Get Back to the Preventative” banner above to learn how!
Heartworms in Dogs: Facts and Myths
WebMD separates the facts from fiction about canine heartworms.
By Sandy Eckstein
WebMD Pet Health Feature Reviewed by Amy Flowers, DVM
Heartworms in dogs are easy to prevent, but difficult and costly to cure. We asked Sheldon Rubin, 2007-
Q: How do dogs get heartworms?
A: Only by the bite of an infected mosquito. There’s no other way dogs get heartworms. And there’s no way to tell if a mosquito is infected. That’s why prevention is so important.
Heartworm disease has been reported in all 50 states. And the bite of just one mosquito infected with the heartworm larvae will give your dog heartworm disease.
Heartworm disease has not only spread throughout the United States, but it’s also now found in areas where veterinarians used to say “Oh, we don’t have heartworm disease.” Areas like Oregon, California, Arizona, and desert areas -
It takes about seven months, once a dog is bitten by an infected mosquito, for the larvae to mature into adult heartworms. They then lodge in the heart, lungs, and surrounding blood vessels and begin reproducing. Adult worms can grow up to 12 inches in length, can live 5-
Q: Can people get heartworms from their dogs?
A: It can only be passed on by mosquitoes. It’s a specific parasite that only affects dogs and cats and ferrets and other mammals. In rare cases, heartworms have infected people, but it does not complete its life cycle. The heartworm will migrate to the lung and cause a round lesion that looks like a tumor. But these are very rare cases.
Q: If one of my dogs has heartworms, can he give it to my other dogs?
A: No. Again, the only way heartworms are transmitted is through the bite of an infected mosquito. And even if an uninfected mosquito bit your infected dog, and then bit your uninfected dog the same night, he wouldn’t transmit the parasite from one dog to the other. That’s because when a mosquito bites an infected animal, the heartworm needs to undergo an incubation period in the mosquito before the mosquito can infect other animals.
Q: Is it OK to adopt a dog with heartworms?
A: It’s a very common problem in animal shelters today, and public shelters rarely have the money to treat heartworm disease. It’s perfectly acceptable to adopt a dog with heartworms, but you have to be dedicated to having the disease treated appropriately, because it’s a horrible disease that can lead to a dog’s death if left untreated.
Q: How can I prevent my dogs from getting heartworms?
A: For less than the cost of going to Starbucks for a weekly coffee, you can prevent heartworm disease in your dog. There are monthly pills, monthly topicals that you put on the skin, and there’s also a six-
Q: What are the symptoms of heartworm infestations in dogs?
A: Initially, there are no symptoms. But as more and more worms crowd the heart and lungs, most dogs will develop a cough. As it progresses, they won’t be able toexercise as much as before; they’ll become winded easier. With severe heartworm disease, we can hear abnormal lung sounds, dogs can pass out from the loss of blood to the brain, and they can retain fluids. Eventually, most dogs will die if the worms are not treated.
Q: Once my dog has heartworms, what’s the treatment? How much will it cost?
A: The drug that you treat with is called Immiticide. It’s an injectable, arsenic-
The safest way to treat heartworms includes an extensive pre-
Q: Why do I have to keep my dog quiet during the several months he’s being treated for heartworms?
A: After treatment, the worms begin to die. And as they die, they break up into pieces, which can cause a blockage of the pulmonary vessels and cause death. That’s why dogs have to be kept quiet during the treatment and then for several months afterward. Studies have shown that most of the dogs that die after heartworm treatment do so because the owners let them exercise. It’s not due to the drug itself.
Q: If my dog is diagnosed with heartworms, can I just give him his monthly preventative instead of having him go through treatment? Won’t that kill his heartworms?
A: Studies have shown that if you use ivermectin, the common preventative, on a monthly basis in a dog with heartworm disease, after about two years you’ll kill off most of the dog’s young heartworms. The problem is, in the meantime, all of those heartworms are doing permanent damage to the heart and blood vessels.
But if there’s no way someone can afford the actual treatment, at least using the preventative on a monthly basis could be a lesser alternative.
Q: Can I skip giving my dog his preventative during colder months, when there aren’t any mosquitoes?
A: The American Heartworm Society recommends year-
The other reason not to stop is that many of the preventatives today also include an intestinal parasite control for roundworms, whipworms, or tapeworms. You want your dog to be protected against those at all times.
Q: If I don’t treat my dog with heartworms, will he “outgrow” his heartworms?
A: No. He stands a good chance of dying from the disease.
Q: I’ve heard the treatment for heartworms can be dangerous. Are there any newer, safer alternatives?
A: We used to use plain arsenic to treat it, which had many side effects. What we use now is a safer product with fewer side effects. It’s a safe product if used correctly.
Q: If my dog gets heartworms, and is treated for them, can he get them again?
A: Yes, he can get them again. That’s why prevention is so important.
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