Yes, heartworm is significantly more common in warm, humid, tropical, and subtropical areas with high mosquito populations, but it's spreading globally and found in all 50 U.S. states, even cooler regions, due to climate change, wildlife carriers (foxes, coyotes), and pet travel, making year-round prevention important everywhere.
Hunting breeds or breeds frequently run at field trials may often appear to be more susceptible to heartworm infection. Because these dogs spend a great deal of time in the field, they are probably fed upon by mosquitoes to a greater extent than are some other breeds.
Active dogs, dogs heavily infected with heartworms, or those with other health problems often show pronounced clinical signs. Signs of heartworm disease may include a mild persistent cough, reluctance to exercise, fatigue after moderate activity, decreased appetite, and weight loss.
No state in the country is heartworm-free. According to the AHS survey, the top 5 states in heartworm incidence were Mississippi, Louisiana, Arkansas, Texas, and Tennessee—all states that have been in the top tier since the AHS began tracking incidence data in 2001.
There's no question that heartworm disease is more common in some areas than others, and the states with the highest percentages of positive cases continue to be in the Southeastern and Gulf Coast regions, where the climate creates ideal conditions for heartworm transmission.
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.
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?
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.
Heartworm disease has been reported in most countries with temperate, semitropical, or tropical climates around the world, including the United States, Canada, Australia, Latin America, and southern Europe.
Summer is the peak season for heartworm. If you don't treat your dog or cat for heartworm every month as recommended, please at least do so this month and next month. The Western Tree Hole Mosquito is an incredibly common pest mosquito and the most important carrier of heartworm.
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.
If you realize you've missed your pet's heartworm medicine by a few days, give the missed dose as soon as you remember, then return to your regular schedule. However, if it's been longer (especially more than a month), don't just resume as normal. The safest move is to call Bixby Animal Clinic for tailored guidance.
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.
The treatment for heartworms is highly successful, but the dog may still suffer long-term effects like pulmonary hypertension, which can shorten its lifespan. Preventing heartworm is much easier and better for the dog's health.
Heartworm disease can severely affect your dog or cat's quality of life. As a pet owner, you're likely wondering, “Can I get heartworm medicine without a vet, or can I buy the pet medication?” Since the FDA regulates heartworm preventatives, you can get them by prescription only.
Factors affecting the level of risk of heartworm infection include the climate (temperature, humidity), the species of mosquitoes in the area, presence of mosquito breeding areas, and presence of animal “reservoirs” (such as infected dogs, foxes or coyotes).
(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.
You should know that although heartworm can be fatal, it is very treatable if caught early. And even more importantly, your veterinarian can prescribe preventatives that are highly effective in stopping your dog from getting heartworm in the first place.
Key takeaways: Heartworm treatment for dogs typically costs between $500 to $6,000.
Year-round heartworm prevention is the best way to ensure your dog is protected from this life-threatening disease.
A persistent, dry cough is a common sign seen in dogs with advanced heartworm disease. The cough caused by heartworm disease can be one of the first signs you notice in an otherwise healthy-appearing dog. Lethargy and reluctance to exercise are common signs described in dogs with advanced heartworm disease.
Symptoms in dogs most commonly include breathing difficulties, coughing, reduced appetite, weight loss and lethargy. Symptoms in cats are similar and may include gagging and vomiting. Signs associated with the first stage of heartworm disease can often be mistaken for feline asthma or allergic bronchitis.
A: Give the dose you missed immediately, then continue giving the medication on the day you've always given it. If the missed dose is more than 2 weeks late, your dog should be tested for heartworm again in six months (click here to learn why). Want a free monthly reminder so you don't forget to give preventatives?
It can prevent heartworms, roundworms, and hookworms. Ivermectin is safe for most dogs. But it should only be given as directed by a veterinarian. Dogs most commonly take ivermectin on a monthly basis as part of a parasite prevention plan.
If left untreated, heartworms continue to live and they can live for several months to years in your dog's system. And because they're living in such a vital part of your dog's body, the heart will change and decompensate over time. And the lungs will start to have an inflammatory reaction.