Heartworm is most common in the southeastern United States, particularly along the Atlantic and Gulf coasts and the Mississippi River Valley, with Mississippi, Louisiana, Texas, Alabama, and Arkansas consistently showing the highest infection rates, but it's found in all 50 states, spreading north and west due to warmer climates, making year-round prevention crucial.

What are the top 10 states for heartworms?

Sadly, my home state of Mississippi has been the #1 state in heartworm incidence for the past six years. The remaining states in the top 10 were Louisiana, South Carolina, Arkansas, Alabama, Texas, Tennessee, Georgia, North Carolina and Oklahoma.

What are early signs of heartworms?

Early heartworm symptoms in dogs are subtle, often missed, and include a mild, persistent cough, lethargy or exercise intolerance, and unusual fatigue after activity, while later signs involve significant weight loss, trouble breathing, or a swollen abdomen, emphasizing the need for prevention and regular testing.

Has a human ever gotten heartworms?

(Unlike in dogs, infected people don't have the parasite microfilaria in their blood, which is how the infection is passed on to mosquitoes and other animals). Heartworm is a rare and rather innocuous problem in humans – it's nothing to lose sleep about.

What states don't have heartworm?

The 5 states with the highest heartworm incidence: Mississippi, Louisiana, Arkansas, Texas, and Tennessee. But no state in the country is heartworm-free, and infection in dogs is considered at least regionally endemic in every state except Alaska. RELATED: Does Heat Treatment Aid Heartworm Detection?

So Your Dog Has Heartworms, What Now?

How to avoid heartworm in dogs?

Traditional Prevention and Treatment

It's currently recommended that all dogs take monthly heartworm preventive medication. This is necessary year-round where I live in Texas, but in other parts of North America, the medication is only needed during the warmer months.

What time of year do dogs get heartworm?

Then every spring the dogs return to their veterinarian for the annual heartworm test and refill. Research into heartworm disease and mosquitoes has shown us that the heartworm season is much bigger than we used to think. Heartworm season is all year around!

Are heartworms actually worms in the heart?

Dog heartworms are actual worms that live in the heart and its major vessels of a dog. They are round, thin and can be 10-12 inches long. It is a common disease that is serious and can be fatal. It causes damage to the heart, lungs, and other organs like the kidney and liver.

What is the lifespan of a heartworm?

Once mature, heartworms can live for 5 to 7 years in dogs and up to 2 or 3 years in cats.

Can a dog survive being heartworm positive?

While heartworm disease can be life-threatening, there are effective treatment options for established heartworm infections, and strict rest during the treatment period is critical to recovery.

Can you tell if a dog has heartworms by their poop?

Also bring a fresh stool sample for them to check for the presence of worms. Finding microscopic intestinal worm eggs in the stool is the most common way to diagnose worms in dogs. Heartworms are diagnosed with a blood test, an X-ray of the chest, or an ultrasound of the heart.

How fast do heartworms progress?

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.

What can be mistaken for heartworm?

Signs associated with the first stage of heartworm disease can often be mistaken for feline asthma or allergic bronchitis.

What dogs are more prone to heartworm?

The infection risk is greatest in dogs that are housed outdoors. Any dog, whether it is an indoor or an outdoor pet, is capable of being infected; all it takes is a bite from a mosquito carrying the infective heartworm larvae. Most infections are diagnosed in medium- to large-sized dogs that are 3–8 years old.

Do dogs take heartworm monthly?

Use monthly preventives, like HEARTGARD Plus chews, on a year-round basis to safely and effectively prevent heartworm disease by affecting the heartworm larvae before they can grow into dangerous adult heartworms.

Should I adopt a dog that has heartworms?

We feel that heartworm positive dogs can still have a high quality of life as long as they are properly cared for by an adopter that is willing to go the extra mile to save a life. A separate treatment is used to kill heartworm microfilaria. A heartworm preventative has been given to your dog to kill the microfilaria.

Do dogs with heartworms feel pain?

Heartworm is not necessarily painful for dogs, but it is uncomfortable. This discomfort is primarily due to the inflammation it causes in the heart and the lungs.

What are the last stages of heartworms?

Stage 4: Severe Disease and Life-Threatening Complications

The most serious stage of heartworm disease can be life-threatening. In severe cases, worms can block blood flow, leading to a sudden emergency known as caval syndrome. Immediate surgical intervention is often required to save the pet's life.

Can dogs fight off heartworm?

Can dogs fully recover from heartworm? Yes. If heartworm disease is caught early and treated appropriately, your dog may go on to have a good-quality life. Unfortunately, some dogs may experience undesirable consequences either from treatment or from the disease itself, and may end up with lifelong complications.

Where do dead heartworms go in dogs?

As they break up, they are carried to the lungs, where they lodge in the small blood vessels and are eventually reabsorbed by the body. This resorption can take several weeks to months, and most post-treatment complications are caused by these fragments of dead heartworms.

How to tell if a human has heartworms?

People with symptoms can have cough (including coughing up blood), chest pain, fever, and pleural effusion (excess fluid between the tissues that line the lungs and the chest cavity). Rarely, D. immitis worms have been found in humans at outside the lungs, including the brain, eye, and testicle.

Does deworming get rid of heartworm?

Dewormer medicine kills intestinal parasites such as hookworms and roundworms. But they do not kill heartworms. In fact, heartworms live in the blood vessels and not the intestines, so dewormers have no effect on them. Heartworm preventative is the only medicine that can prevent heartworms.

Can you skip heartworm in winter?

Although there are fewer mosquitoes in the winter, there is still a risk that your pet could get heartworms if you stop giving heartworm prevention medication during this season. That's one reason veterinarians strongly recommend pets receive heartworm prevention medication year-round.

What states are worst for heartworms?

North America can carry heartworms. WHERE THE WORMS ARE WORST. The TOP 5 states are: Mississippi, Louisiana, South Carolina, Arkansas, and Alabama.

Can ticks give a dog heartworm?

While fleas and ticks do not directly transmit heartworm, their presence often signals an environment where mosquitoes thrive. Pets infested with fleas or ticks may also be at higher risk of mosquito exposure, increasing the chance of heartworm infection.

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