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The esophageal worm (Spirocerca lupi) is a bright red worm that causes nodules in the esophageal wall. Male worms measure about 40 mm, and female worms are about 70 mm long. Infection occurs perorally via intermediate hosts (various dung beetles) or via paratenic hosts such as chickens, reptiles, and rodents infected by eating the beetles. The ...
Helicoverpa zea larva feeding on corn [33] Helicoverpa zea earns its nickname the corn earworm for its widely known destruction of cornfields. [34] The corn earworm feeds on every part of corn, including the kernels. [34] Severe feeding at the tip of kernels allows entry for diseases and mold growth. [34]
It is a congenital heart disease in dogs. There usually are no signs in dogs except for a heart murmur. However, a large defect can result in heart failure or in pulmonary hypertension leading to a right-to-left shunt. [49] Atrial septal defect* is a hole in the division between the heart atria (upper chambers of the heart). It is an uncommon ...
Pathology is from both the adult worms, eggs and larvae. Cardio-respiratory signs are one clinical symptom. Chronic, coughing, exercise intolerance, dyspnea and tachypnea in young dogs is due to blood vessels being blocked by adults, eggs and larvae. The parasite also causes coagulopathies.
Dipylidium life cycle. Dipylidium caninum, also called the flea tapeworm, double-pored tapeworm, or cucumber tapeworm (in reference to the shape of its cucumber-seed-like proglottids, though these also resemble grains of rice or sesame seeds) is a cyclophyllid cestode that infects organisms afflicted with fleas and canine chewing lice, including dogs, cats, and sometimes human pet-owners ...
Toxascaris leonina is a common parasitic roundworm found in dogs, cats, foxes, and related host species. T. leonina is an ascarid nematode , a worldwide distributed helminth parasite which is in a division of eukaryotic parasites that, unlike external parasites such as lice and fleas , live inside their host. [ 2 ]
Dirofilaria immitis, also known as heartworm or dog heartworm, is a parasitic roundworm that is a type of filarial worm, a small thread-like worm, and which causes dirofilariasis. It is spread from host to host through the bites of mosquitoes .
Toxocara canis (T. canis, also known as dog roundworm) is a worldwide-distributed helminth parasite that primarily infects dogs and other canids, but can also infect other animals including humans. [ 1 ] [ 2 ] The name is derived from the Greek word toxon 'bow, quiver' and the Latin word caro 'flesh'. [ 3 ]
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