| relationships of immature dermacentor variabilis (say) (acari: ixodidae) with the white-footed mouse, peromyscus leucopus, in southwestern wisconsin. | | 1975 | 1195285 |
| studies on the biology of ixodes dammini in the upper midwest of the united states. | the seasonal activity pattern of ixodes dammini was monitored in south-central wisconsin in 1989 and 1990. immature tick activity and abundance were assessed by small mammal trapping (732 peromyscus leucopus examined) and supplemented with flagging. tick survival and molting times were evaluated by maintaining ticks in environmental chambers at field sites. results indicate the biology of i. dammini in the upper midwest is similar to that previously reported from the eastern united states. one n ... | 1992 | 1626896 |
| survey for ixodes spp. and borrelia burgdorferi in southeastern wisconsin and northeastern illinois. | forested areas adjacent to milwaukee, wis., and chicago, ill., were investigated for rodents and ticks infected with borrelia burgdorferi, the causative agent of lyme disease. white-footed mice (peromyscus leucopus or peromyscus maniculatus), meadow voles (microtus pennsylvanicus), and eastern chipmunks (tamias striatus) were captured; and specimens from these animals were cultured for b. burgdorferi to define whether the midwestern lyme disease area currently encompasses these large metropolita ... | 1991 | 2007650 |
| lyme disease ecology in wisconsin: distribution and host preferences of ixodes dammini, and prevalence of antibody to borrelia burgdorferi in small mammals. | lyme disease recently has been recognized in wisconsin. trapping studies were conducted at four geographically separate and ecologically distinct regions in wisconsin to elucidate the distribution and host preferences of ixodes dammini on small and medium sized mammals, and the occurrence of antibodies to borrelia burgdorferi in these wild mammals. peak i. dammini larval activity occurred from june-september. nymphs were most active from may-august. white-footed mice (peromyscus leucopus) and ch ... | 1987 | 3605501 |
| borrelia burgdorferi-infected ixodes scapularis (acari: ixodidae) and peromyscus leucopus in northeastern wisconsin. | populations of the blacklegged tick, ixodes scapularis say, are established in western and central wisconsin in the upper midwestern united states, but appear to be expanding geographically there. here, we report a previously unknown population in northeastern wisconsin. questing i. scapularis nymphs and adults were collected by flagging vegetation from a riverine site in marinette county, wisconsin, in spring of 1993 and 1994. dissection and culture of tick guts in modified barbour-stoenner-kel ... | 1996 | 8906923 |
| serologic evidence of infection with ehrlichia spp. in wild rodents (muridae: sigmodontinae) in the united states. | rodent (muridae: sigmodontinae) blood and sera collected from 14 states were tested for seroreactivity to a cultured isolate of the human granulocytic ehrlichiosis (hge) agent by using an indirect immunofluorescence assay. of the 1,240 samples tested, 136 (11%) were found to be reactive at titers of > or = 32. rodents with hge agent-specific antibodies were found in new york (23% of 491 samples; geometric mean endpoint titer [gmt] = 441), connecticut (11% of 100 samples; gmt = 481), california ( ... | 1998 | 9508298 |
| borrelia burgdorferi infection surrounding la crosse, wis. | this investigation defined the extent of borrelia burgdorferi infection surrounding la crosse, wis. white-footed mice, peromyscus leucopus or p. maniculatis, were captured from sites in wisconsin, minnesota, and iowa and cultured for b. burgdorferi to define the local boundaries of the midwestern lyme disease area. all foci of b. burgdorferi infection (n1, n2, n3, and n4) were located north of interstate highway 90 except focus s2, which was south of the highway near fort mccoy, wis. the interst ... | 1988 | 3230137 |
| relationships of the white-footed mouse, peromyscus leucopus, and its associated fleas (siphonaptera) in southwestern wisconsin. | | 1976 | 1011239 |
| enzootic transmission of deer tick virus in new england and wisconsin sites. | to determine whether rodents that are intensely exposed to the deer tick-transmitted agents of lyme disease, human granulocytic ehrlichiosis, and human babesiosis are also exposed to deer tick virus (dtv), we assayed serum samples from white-footed mice (peromyscus leucopus) and meadow voles (microtus pennsylvanicus) in sites densely infested by deer ticks. to conduct serosurveys, we developed an enzyme-linked immunosorbent assay (elisa) and western blot assay by cloning, expressing, and purifyi ... | 2000 | 11357992 |
| proposal to reclassify ehrlichia muris as ehrlichia muris subsp. muris subsp. nov. and description of ehrlichia muris subsp. eauclairensis subsp. nov., a newly recognized tick-borne pathogen of humans. | we have previously described a novel taxon of the genus ehrlichia (type strain wisconsint), closely related to ehrlichia muris, that causes human ehrlichiosis among patients with exposures to ticks in the upper midwestern usa. dna from this bacterium was also detected in ixodes scapularis and peromyscus leucopus collected in minnesota and wisconsin. to determine the relationship between the e. muris-like agent (emla) and other species of the genus ehrlichia phenotypic, genotypic and epidemiologi ... | 2017 | 28699575 |
| isolation of the lyme disease spirochete borrelia mayonii from naturally infected rodents in minnesota. | borrelia mayonii is a newly described member of the borrelia burgdorferi sensu lato complex that is vectored by the black-legged tick (ixodes scapularis say) and a cause of lyme disease in minnesota and wisconsin. vertebrate reservoir hosts involved in the enzootic maintenance of b. mayonii have not yet been identified. here, we describe the first isolation of b. mayonii from naturally infected white-footed mice (peromyscus leucopus rafinesque) and an american red squirrel (tamiasciurus hudsonic ... | 2017 | 28444198 |
| co-feeding transmission of the ehrlichia muris-like agent to mice (mus musculus). | the ehrlichia muris-like agent (emla) is a newly recognized human pathogen found in wisconsin and minnesota. ecological investigations have implicated both the blacklegged tick, ixodes scapularis, and the white-footed mouse, peromyscus leucopus, as playing roles in the maintenance of emla in nature. the work presented here shows that i. scapularis is an efficient vector of emla in a laboratory mouse model, but that dermacentor variabilis, another frequent human biting tick found in emla endemic ... | 2016 | 26824725 |
| comparative phylogeography of eastern chipmunks and white-footed mice in relation to the individualistic nature of species. | palaeoecological studies have demonstrated that ecological communities as a whole did not remain stable throughout the climatic fluctuations of the quaternary. the result is that long-term associations of species cannot be inferred by contemporary associations in ecological communities. therefore, the evolutionary significance of any contemporary ecological interactions among species and of the biotic community within which species have evolved also cannot be assumed from contemporary conditions ... | 2006 | 17054499 |
| presence of borrelia burgdorferi (spirochaetales: spirochaetaceae) in southern kettle moraine state forest, wisconsin, and characterization of strain w97f51. | lyme disease, caused by borrelia burgdorferi johnson, schmidt, hyde, steigerwalt & brenner; babesiosis, caused by babesia microti franca; and human granulocytic ehrlichiosis, caused by anaplasma phagocytophilum bakken & dumler have been reported in wisconsin, mainly in the endemic areas of the northwestern part of the state. people exposed to blacklegged ticks, ixodes scapularis say, from this region can potentially contract one or all of these diseases concurrently. within the past several year ... | 2005 | 15962800 |