Heartworm is found globally, thriving in warm, humid, and tropical/subtropical areas with abundant mosquitoes, like the Southeastern US and coastal Australia (Queensland, NSW). However, it's spreading to more temperate zones (like Melbourne, Sydney) and is present in all US states, carried by wildlife like foxes and coyotes, making prevention crucial everywhere.
Most heartworm cases are documented in tropical/subtropical areas of Australia, but they can be found anywhere. Tasmania is not considered to be heartworm-endemic. Approximately 90% of heartworm cases reported to Zoetis in recent years were from Queensland and approximately 10% were from other states.
In the United States, heartworm disease is most common along the Atlantic and Gulf coasts from the Gulf of Mexico to New Jersey and along the Mississippi River and its major tributaries, but it has been reported in dogs in all 50 states.
The most common first sign of the disease is a cough. Other signs are fatigue during physical exercise and an extended abdomen due to fluid accumulation. Like dogs, humans usually show no signs of having heartworm disease. Areas of inflammation, cough, chest pain, and fever are common symptoms.
All dogs are susceptible to heartworm, regardless of their breed, age, or sex. However, some breeds such as Australian Shepherds, Border Collies, and Jack Russells, are more vulnerable to the disease due to their genetic makeup, so it's crucial to ensure they receive regular heartworm preventative treatment.
Who is at risk of rat lung worm disease? The parasite is more common in some parts of the world, especially in Southeast Asia, the Pacific Islands and Australia. People are at risk if they eat raw snails or slugs infected with this parasite, either deliberately or accidentally.
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.
Anecdotal evidence suggests that herbs such as garlic, black walnut and wormwood, and the homeopathic heartworm nosode, may actually prevent as well as treat infection. Unfortunately, I have not yet been able to find substantive proof that these therapies can reliably and safely prevent or treat infection or disease.
No, heartworms are not passed in faeces like some other worms. How do humans get heartworms from dogs? The same as with dog to dog transmission, humans can only get heartworms through mosquito bites. Heartworms don't like to live in humans so cases are very rare.
Worm infection symptoms vary but commonly include an itchy bottom (especially at night for threadworms), abdominal pain, diarrhea, bloating, gas, nausea, fatigue, and changes in appetite, with some infections causing no symptoms at all. More severe or persistent issues can involve weight loss, vomiting, skin rashes, or even muscle/joint pain, requiring medical diagnosis for confirmation and treatment, as these signs overlap with other conditions.
In most parts of the country, exposure risk is greatest during the warm months of summer and early fall.
Heartworm is spread by mosquitoes that bite an infected host and then pass the parasite to another host during a blood meal. Aedes, Anopheles, and Mansonia species of mosquito are all capable of transmitting heartworm.
Intestinal worms are common parasites of dogs but luckily it is rare for people to develop illness from worms that affect dogs. If you are concerned about your health and any symptoms that develop it's always best to consult your doctor.
Heartworm thrives in tropical areas, but it is becoming increasingly common in temperate zones in Australia, and in Melbourne in particular. A recent study showed that roughly 7% of all foxes in the Melbourne region are infected with heartworm.
In Australia, threadworm (also called pinworm) is the most common worm in children, but worms can infect people of any age. Threadworms are small, white, thread-like worms that are 2 to 13 millimetres long. The worms only infect humans, so children cannot catch threadworms from pets.
Yearly heartworm prevention injection:
0kg to 10kg – $122. 11kg to 20kg – $144. 21kg to 30kg – $167. 31kg to 40kg – $189.
Recovery is possible — but it takes time, commitment, and close monitoring. Treating heartworm is a multi-step process, typically lasting several months. The goal is to kill the adult worms without causing dangerous complications and to minimize permanent damage to your dog's heart and lungs.
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.
The most common symptom of heartworm disease in dogs is a dry, hacking cough. This cough may worsen shortly after the dog has eaten, and it typically also worsens with activity.
Restrict exercise.
But your dog's normal physical activities must be restricted as soon as the diagnosis is confirmed, because physical exertion increases the rate at which the heartworms cause damage in the heart and lungs. The more severe the symptoms, the less activity your dog should have.
Paws 4 A Cure provides financial assistance for urgent veterinary care to dogs and cats in need across the United States for the treatment of illnesses and injuries. This includes medication, insulin, Heartworm positive treatment and medical equipment such as wheelchairs.
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.
The cough associated with heartworm disease in dogs is often likened to the sound of a goose honking. If your dog tends to get into coughing fits after activity or eating, and if those coughs sound harsh and honk-like, then she may have heartworm disease or another heart related concern.
Another clear indicator of heartworm disease is lethargy. If your dog normally has a lot of energy but is now spending a lot more time sleeping or avoiding interacting with you, this may be due to their heart having to work harder to pump blood.
Apples: Apples are great for dogs with heartworms due to their high levels of vitamin A, vitamin C and fiber. Apples in your dog's diet may help repair damaged tissue and blood vessels and support the health of their vital organs.