Naslov
Zoonotic Aspects of Canine and Feline Ectoparasites: WhatEvery Physician Should Know

Autori
Živičnjak, Tatjana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, stručni

Skup
5th Croatian congress on infectious diseases

Mjesto i datum
Zadar, Hrvatska, 23.08.2006. - 27.08.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Ectoparasites; dog; cat; man

Sažetak
The physicians and the veterinarians should be familiar with the most common zoonotic skin diseases of small animals. The type and the distribution of the skin lesions in animals and in the owners generally can give important clues to the type of zoonosis. Insects:Fleas are the most common external parasite of dogs and cats. Flea bites causing itchy skin lesions have been recognised by many people. They appear as small papules, mostly in clusters, that are intensively pruritic. The main cause of flea bites in humans are Ctenocephalides felis and C. canis , both infesting dogs and cats. In most cases, flea infestation occurs through newly hatched, hungry adult fleas. They wait for a host at the flooring surfaces. They can jump up to 60 – 70 cm high, thus lesions are found on the legs and up to the knee area of adults, and higher up on children. Fleas suck blood several times in the same area, which causes lesions arranged in the groups. Direct transmission from a flea-bearing animal seldom occurs ; human lesions are found then mostly on the forearm or other body regions where the pet comes into contact. Mites:Acariasis in animals is caused by a variety of mites. The zoonotic species include the following mites: Family Sarcoptidae:Sarcoptes scabiei causes sarcoptic mange (scabies) in humans and more than 100other species of other mammals and marsupials. There are several variants of this organism that are host specific, but also can cause temporary dermatitis in other hosts, but they do not reproduce except on their preferred host. Notoedres cati is a burrowing mite with a life cycle similar to that of Sarcoptes scabiei. Notoedres cati causes notoedric mange (feline scabies) in the felids and also infests a variety of other species. It can also cause self-limiting dermatitis in humans. The red itchy papules in humans are seen in non-protected body regions that come in direct contact with the animal, mostly on arms, legs or in the upper body. Classical signs include a severe, non-seasonal pruritus with a typical distribution pattern (abdomen and limbs). They clear after a couple of days, but as long as the animal harbours mites, new papules in the affected humans come up, clear again and so on. Family Psoroptidae:Most members of this family affect only domestic animals (e.g. psoroptic mange). Rare, self-limiting human skin infestations on non-protected body regions with the canine and feline ear mite Otodectes cynotis have been reported. Family CheyletidaeCheyletiella yasguri and C. blakei live on dogs and cats and rarely cause symptoms other than desquamation. These parasites also cause self-limiting dermatitis in humans on non-protected body regions that had been in contact with the animal. Hard ticks (Family Ixodidae)Hard ticks live in the scrubby areas and they do not jump or fly--they wait on vegetation for an animal or man to brush against them. They then attach to the victim and insert their mouthparts. It is not possible for hard ticks to change bearer after attaching. Following a blood meal, the tick drops to the ground and undergoes further moult. Generally, detached hard ticks can’ t survive in the household, except so called “ kennel tick” , Rhipicephalus sanguineus.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

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