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A Look at Heartworm Disease

Heartworm disease, which is caused by the microfilaria worm, is a serious disease carried by mosquitoes. When an infected mosquito bites your pet, the worm is injected into your pet’s body and infects the pet as well.

What Happens in the Heart

Once the microfiliaria gets injected into the bloodstream of your pet, the microscopic worms are transported through the bloodstream. During this time, the blood and the worms go through your pet’s blood vessels and pulmonary vessels in the lungs. The pulmonary vessels in the heart actually protect the worms, which makes it easier for the worm to grow. The worm grows to several inches and becomes an adult, which makes it capable of breeding with other heartworms. As the worms breed, they create

The worm is then actually protected by the pulmonary vessels and the heart, which gives it the opportunity to grow up to several inches long. Once the worm becomes an adult, it becomes capable of breeding with other heartworms and producing more microfilaria. If a mosquito bites an infected animal, it draws in more of the microfilia and infects additional animals when it bites them.

Putting Your Pet at Risk

All dogs and cats are at risk of developing heartworm disease. The eastern and southern areas of the United States, however, have the highest concentration of infection. Heartworm disease is also more common along the Mississippi River, the Ohio River, and the Midwestern river valley.

Outdoor pets are also at a greater risk of getting heartworms. Just because an animal is indoors, however, it doesn’t guarantee the pet’s safety. Even pets that never go outdoors can get heartworms. For this reason, all pets need to be protected from the disease.

How Heartworms Affect Your Pet

When heartworms infest your pet’s heart, they damage the blood cells and the vessel walls. This can cause clotting, scarring, and narrowing of the blood vessels. In addition, your pet’s heart is forced to pump faster and its blood pressure goes up. Over time, this leads to heart failure. The more worms in your pet’s heart, the faster this happens. The worms can also live in other areas of your pet’s body for anywhere from three to five years as they gradually destroy your pet’s heart.

Recognizing Heartworms in Your Pet

The best way to determine if your pet has heartworms is to see the veterinarian regularly and have the appropriate testing completed. The earlier you catch heartworm in your pet, the better your chances getting rid of the worms before they cause long term damage. Pets with advanced heartworm disease may frequently cough because the worms get into their air passages. As the pet coughs up the worms, it looks as if it is throwing up the worms. But, they are actually coming out of the pet’s lungs. Your pet may also get tired easily, lose weight, have a decrease in appetite, experience abdominal swelling, faint, and have blood clots.

How to Prevent Heartworms

Many different medications can be used to help prevent heartworms. Medications such as Dimmitrol can be given every day, while Nuheart and Heartgard only need to be given monthly. The best way to protect your pet is to give it heartworm medication throughout the entire year, no matter what type of climate you live in or in what area of the country you reside. Before you begin your pet on heartworm medication, however, you need to get a check up with the veterinarian because giving your pet heartworm medication when it already has heartworms can be fatal.

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