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Related to dirofilariasis: Dirofilaria repens
infection with nematodes of the genus Dirofilaria; it is common in dogs and occasionally seen in humans, causing symptoms such as coughing, chest pain, and sometimes hemoptysis.
Infection of animals and, rarely, humans with nematodes of the genus Dirofilaria; cats are an atypical host and are susceptible to very samll worm burdens, even a few worms may lead to sudden death. In dogs, the definitive hosts, clinical signs include dyspnea, cough, reduced exercise tolerance, and weight loss. In cats, sudden death, vomition, and less commonly, a syndrome resembling asthma may occur. Microfilariae circulate in the bloodstream where they are picked up by mosquito vectors; death of the adult worms during treatment may release antigens in the bloodstream, which can lead to serious side effects including anaphylaxis, expecially in cats. Human infection is typically subclinical, with development of small pulmonary nodules that are often only picked up when they are confused with small tumors on X-ray.
dirofilariasis/di·ro·fil·a·ri·a·sis/ (-fil″ah-ri´ah-sis) infection with nematodes of genus Dirofilaria, common in dogs but rare in humans.
a human infestation of the dog heartworm, Dirofilaria immitis, and the closely related D. (Nochtiella) repens, both of which may be transmitted through the bite of any of several species of mosquitoes. The filaria migrate through the bloodstream to the lung, producing pulmonary nodules and causing chest pain, coughing, and hemoptysis. The disease is rare among humans, but some species have been found to infect subcutaneous tissue and the eyes. Human disease is independent of dog ownership. Humans are deadend hosts for the parasites. Also called zoonotic filariasis.
infection with nematodes of the genus Dirofilaria. Includes subcutaneous swellings. See also heartworm disease.