| density-dependent acquired resistance to ticks in natural hosts, independent of concurrent infection with babesia microti. | the question of whether the known immunosuppressive effects of babesia microti may disrupt the development of acquired resistance to its tick vector, ixodes trianguliceps, in natural rodent hosts (clethrionomys glareolus), and thus enhance the disease transmission potential, is addressed experimentally. the results show for the first time that natural hosts can acquire resistance to ticks; that this acquired resistance is manifested chiefly by a strongly density-dependent reduction in the percen ... | 1994 | 8008455 |
| testosterone depresses innate and acquired resistance to ticks in natural rodent hosts: a force for aggregated distributions of parasites. | the effects of testosterone on acquired resistance to ticks, ixodes ricinus, in their natural rodent hosts (voles, clethrionomys glareolus, and wood-mice, apodemus sylvaticus) were investigated by manipulating testosterone levels and exposing the hosts to repeated tick infestations. testosterone reduced both innate and acquired resistance to tick feeding. during primary infestations, attachment rates were higher on rodents with high testosterone levels than on oil-implanted controls. successive ... | 2001 | 11227902 |
| hosts and pathogen detection for immature stages of ixodes ricinus (acari: ixodidae) in north-central spain. | to determine hosts of the immature stages of a southern population of ixodes ricinus, we trapped rodents and birds in an area of north-central spain in may-june and august-september of 1998 and 1999. the most frequently trapped rodents were apodemus sylvaticus (230 specimens) and clethrionomys glareolus (99), with a larval infestation prevalence of 49% and 81%, respectively (in spring) and 21% and 41% (in summer). c. glareolus was always more heavily parasitized by larvae (mean numbers 19.8 in s ... | 2005 | 16323055 |
| investigating the persistence of tick-borne pathogens via the r0 model. | summaryin the epidemiology of infectious diseases, the basic reproduction number, r0, has a number of important applications, most notably it can be used to predict whether a pathogen is likely to become established, or persist, in a given area. we used the r0 model to investigate the persistence of 3 tick-borne pathogens; babesia microti, anaplasma phagocytophilum and borrelia burgdorferi sensu lato in an apodemus sylvaticus-ixodes ricinus system. the persistence of these pathogens was also det ... | 2011 | 21518464 |
| molecular survey of zoonotic agents in rodents and other small mammals in croatia. | croatia is a focus for many rodent-borne zoonosis. here, we report a survey of 242 rodents and small mammals, including 43 myodes glareolus, 131 apodemus flavicollis, 53 apodemus agrarius, three apodemus sylvaticus, six sorex araneus, four microtus arvalis, one microtus agrestis, and one muscardinus avellanarius, collected at eight sites in croatia over an 8-year period. multiplex masstag polymerase chain reaction (pcr) was used for detection of borrelia, rickettsia, bartonella, babesia, ehrlich ... | 2016 | 26711522 |
| molecular examinations of babesia microti in rodents and rodent-attached ticks from urban and sylvatic habitats in germany. | small mammals serve as reservoir hosts for tick-borne pathogens, especially for those which are not transmitted transovarially in ticks - such as babesia microti. molecular investigations on the prevalence of b. microti in wild small mammals and on attached ticks from differently structured areas may provide information on the circulation of b. microti in different ecological niches. in 2012 and 2013, 622 rodents (396 myodes glareolus, 178 apodemus flavicollis, 36 apodemus sylvaticus, 4 apodemus ... | 2015 | 25922232 |