Какие заболевания переносят крысы
Добавлено: Пт янв 30, 2009 10:11 pm
На сайте Rat Behavior and Biology можно найти вот такой списочек (указаны заболевание / вид паразита и процент зараженных крыс в определенной популяции):
Webster and MacDonald (1995) studied the parasite and disease load of wild rats on farms in England:
Helminths (worms)
Bacteria
Protozoa
Viruses
Stojcevic et al. (2004) examined 255 wild Norway rats captured in rural Croatia for parasites. Overall, they found that 72.6% of the rats were infected with some form of parasite. Nearly a third of the rats (32.2%) were infected with external parasites, and nearly two thirds (65.1%) with internal parasites.
Ectoparasites (note: these ectoparasites are vectors for diseases which are transmissible to humans, such as typhus)
Internal parasites were found in 65.1% ofd the rats:
Nematodes:
Leptospira spp.
Конечно, количество и качество паразитов сильно варьирует в зависити от местости. Во-вторых, нельзя однозначно сказать, что паразиты вредны. В-третьих, большинство паразитов специфичны для конкретного вида или семейства. В общем, нужна инфа по этим трем параметрам. Много можно взять с того же сайта.
Как пройдемся по всем болезням, опубликую инфу на сайте.
Webster and MacDonald (1995) studied the parasite and disease load of wild rats on farms in England:
Helminths (worms)
- the oxyuroid pinworm Syphacia muris in 67% of the rats
the strongoloyd parasite Nippostronglyus brasiliensis found in 23%
the liver worm Capillaria in 23%
the cestode Hymenolepsis diminuta in 22%
Toxocara cati causing Toxocariasis in 15%
the oxyuroid pinworm Heterakis spp. in 14%
the cestode Hymenolepsis nana in 11%
the intestinal tapeworm Taenia taeniaeformis in 11%
Bacteria
- Leptospira spp. bacteria causing Weil's disease in 14%
Listeria spp. bacteria causing listeriosis in 11%
Yersinia enterocolitica bacteria causing yersiniosis in 11%
Pasturella spp. bacteria causing Pasturellosis in 6%
Pseudomonas spp. bacteria causing Meilioidosis in 4%
Protozoa
- Cryptosporidium parvum causing cryptosporidiosis in 63% of the rats
Toxoplasma gondii causing toxoplasmosis in 35%
Trypanosoma lewisii in 29%
Eimeria separata in 8%
Rickettsia
Coxiella burnetti evidence of infection by Q fever in 34%
Viruses
- Hantavirus causing Hantaan-fever or hemorrhagic fever in 5%
Stojcevic et al. (2004) examined 255 wild Norway rats captured in rural Croatia for parasites. Overall, they found that 72.6% of the rats were infected with some form of parasite. Nearly a third of the rats (32.2%) were infected with external parasites, and nearly two thirds (65.1%) with internal parasites.
Ectoparasites (note: these ectoparasites are vectors for diseases which are transmissible to humans, such as typhus)
- Fleas found on 100% of the rats
Mites found on 67%
Lice found on 38%
Internal parasites were found in 65.1% ofd the rats:
Nematodes:
- Capillaria spp. (18%)
Capillaria hepatica (0.39%): liver worm
Syphacia muris (3.53%)
Nippostrongylus brasiliensis (16.9%)
Heterakis spumosa (25.9%)
Strongyloides ratti (1.18%)
Ascaris suum eggs (8.24%)
Toxocara spp. eggs (1.96%)
- Hymenolepsis diminuta (36.9%)
Taenia taeniaeformis (10.6%)
Leptospira spp.
- 16% of wild Norway rats in and around Saint Petersburg, Russia carried Leptospirosis (Tokarevich et al. 2002)
45% of wild Norway rats on the Ripa Grande-San Michele port in Rome, Italy carried Leptospirosis (Pezella et al. 2004)
16.9% of brain tissue samples and 27.1% of kidney samples from 59 wild Norway rats collected along the Black Sea in Turkey tested positive for Leptospirosis (Sunbul et al. 2001).
Конечно, количество и качество паразитов сильно варьирует в зависити от местости. Во-вторых, нельзя однозначно сказать, что паразиты вредны. В-третьих, большинство паразитов специфичны для конкретного вида или семейства. В общем, нужна инфа по этим трем параметрам. Много можно взять с того же сайта.
Как пройдемся по всем болезням, опубликую инфу на сайте.