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Parasites

  • Pruritus (itching) is a very common skin disorder that can be seen due to allergies or infections affecting the skin. The condition may be resolved if an underlying cause can be identified. Consult your veterinarian about what can be tested for and what treatments can be effective for relief.

  • Pythiosis is a waterborne infection that can infect the GI tract or skin of dogs. It can cause extreme weight loss, vomiting, diarrhea or skin lesions such as ulcerating nodules and draining tracts. This disease is more common in southern regions. Treatment involves surgical removal of all affected material if possible, including limb amputation if indicated. Different antifungal therapies have shown some efficacy and need to be continued long-term. Prognosis for resolution of pythiosis is guarded to poor.

  • Rabbit syphilis is a sexually transmitted disease caused by a spirochete organism called Treponema cuniculi. Infected rabbits will develop sores that are confined to the mucocutaneous junctions, such as the external genitals, anus, lips, nostrils, and eyelids. Treatment involves two to three weekly penicillin injections. Humans cannot contract this disease from rabbits.

  • Fly strike is basically a condition where flies are attracted to the fur or exposed skin on a rabbit, whereby they lay eggs that hatch into maggots that subsequently cause extensive skin and deep tissue damage. The attraction to flies comes from urine or fecal soiled hair or skin that has been damaged by fight wounds, fleas or skin mites. Treatment requires veterinary attention and potential hospitalization. Prevention is attained by keeping your rabbit INDOORS and clean.

  • Ringworm infections in cats are caused by a fungus, not a worm. They can be easily recognized, though definitive testing by fungal culture is recommended. Ringworm is highly contagious and can be spread between animals and from animals to people. The clinical signs, diagnosis, treatment, and risks are explained in this handout.

  • Rocky Mountain Spotted Fever (RMSF) is spread by various species of ticks and is not confined just to the Rocky Mountain regions of North America. Clinical signs can be non-specific and affect multiple body systems. Early diagnosis and treatment give the best prognosis for recovery after treatment with antibiotics. Prevention of tick bites and prompt removal of ticks is important.

  • Roundworms are one of the most common intestinal parasites of the cat. They can be an important cause of illness, even death, in kittens. As their name implies, these are large-bodied round worms, averaging about 3-6 inches (8-15 cm) in length. They do not attach to the wall of the intestine, as some intestinal parasites do. Instead, they are literally "swimming" freely within the intestine.

  • Roundworms (nematodes or ascarids) are parasites that live freely in the intestine, feeding off of partially digested intestinal contents.

  • Salmon poisoning is caused by a type of bacteria found within parasitic flatworms that infect the tissues of wild fish found in coastal streams of the Pacific Northwest.

  • Sarcoptic mange, also known as scabies, is caused by a parasitic mite that burrows just beneath the surface of the skin. The presence of the sarcoptic mite causes intense itching; an affected dog will constantly chew and scratch his skin. Sarcoptic mange is highly contagious to other dogs and humans.