One of the more common questions I was asked by pet owners was whether or not their dog really needed to be on a conventional preventive medication. More often than not, most clients are told only one thing: to give their dog a monthly Heartworm preventive. In this article I’ll explain exactly what is heartworm, the causes of heartworm, determining if your dog needs to be on a preventive heartworm medication, and the holistic options available to prevent heartworm in pets.
Heartworm (Dirofilaria immitis) is a parasitic worm which infects mostly dogs. Although all internal parasites can be harmful to your pet, heartworm infestation is serious and can be cause death. The worm mainly affects the lung arteries, and clinical signs are associated with damage to the lungs, and then the heart.
Heartworm is spread by mosquitoes. Not all mosquitoes carry heartworm, but when an infected mosquito bites your pet, it can transfer larvae to the animal’s tissues. The worms require development in the mosquito at a temperatures above 27 °C (80 °F) ; below 14 °C (57 °F), development cannot occur, and the cycle will be halted. If the temperature is warm enough, and the heartworm larvae progresses to being infective, they can infect another dog. These larvae then migrate through the body, until they reach the animal’s heart and lungs. There the adult worms will grow. They can grow to 70 -110 cm long and cause a great deal of damage to the heart and lungs.
Dogs show no sign of infection with heartworm during the first 6 months. The first signs include a cough, especially after exercise. As the disease advances, signs can include fainting, pronounced coughing, syncope, crackles in the lungs, general weakness, and heart failure. In serious cases of heartworm disease, it can lead to sudden death.
Most (certainly not all) holistic veterinarians consider the use of pharmaceutical preventatives to be less harmful than a heartworm infection. What you need to be aware of is the incidence of Heartworm in your area, and whether or not your pet really is at risk of Heartworm disease. For example in Canada, Heartworm is difficult to acquire, and usually not fatal; far less than the dire warnings and marketing claims of the Heartworm preventive companies. For heartworm to be transmitted to your pet, you need the correct temperature for a long enough period of time, the right climate, and the correct species and sex of mosquito.
Read the rest of the article at Dr Jones can you naturally prevent/treat heartworm?