Yersinia pseudotuberculosis was isolated from 8 (8 Rattus norvegicus) of 270 (259 R. norvegicus and 11 R. rattus) rats examined. Seasonal variation was not found in the incidence of isolations. The isolation occurred almost equally in both young and old rats. The isolated strains were determined as serovar IB in one rat, and serovar IVA in seven rats. The strains were isolated from the contents...

New Zealand has four rodent species, the ship rat (Rattus rattus L.), Norway rat (R. norvegicus Berkenhout), kiore (or Polynesian rat, R. exulans Peale) and the house mouse (Mus musculus L.), all of which have been introduced. Their presence has implications for conservation management as they prey on native bird (Bell, 1978; King, 1984), reptile (Whitaker, 1978) and invertebrate (Ramsey, 1978;...

Over a period of more than 10 years we have isolated and classified 161 Leishmania strains from cases of human visceral, cutaneous and mucosal leishmaniasis in immunocompetent subjects, from cases of visceral leishmaniasis in immunocompromised individuals with HIV, from dogs with leishmaniasis (visceral and cutaneous), from Rattus rattus and from sandflies. The strains were all L. infantum, the...

Lysosomes are sensitive to environmental stresses. Lysosomal membrane stability measured using lysosomal enzyme release assay (LERA) and expressed in terms of lysosomal lability index is employed as an early warning system for detection of disturbances in the surrounding environment. In the present study, lysosomal membrane stability of animals belonging to different phyla namely, Rattus norweg...

Catalase is one of the most active antioxidant defence enzymes known for being highly cooperative with SOD and other H2O2 producers at high flux of hydrogen peroxide. In the present study, catalase activity was analyzed in liver samples of different animals both by ge l ac t iv i t y s ta in ing method as we l l as spectrophotometric biochemical method. Five different animals like fish (Cirrhin...

b a ckground: zoonotic cutaneous leishmaniasis (zcl) is endemic in many parts of iran. recently its incidence isconsiderable in different parts of jahrom district, in fars province, southern iran. the aims of our study were to in- vestigate the prevalence of leishmania infection, and identify and characterize the   leishmania species present, among the rodents by molecular methods in a new ende...

ectoparasites of various species of rodents were examined from sarepole zehab, kermanshah province iran during 2005. this city is bordered with iraq. a total of 139 rodents included 6 species of hosts were captured during all different seasons and examined for ectoparasites using live trap. the area of study was mainly plateu (70%) and mountanous. the hosts including: microtus socialis, mus mus...