Publications

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serologic survey for selected infectious disease agents in swift and kit foxes from the western united states.a serologic survey of swift fox (vulpes velox) and kit fox (v. macrotis) from the western usa was conducted for 12 infectious diseases. samples from swift fox were collected between 1987 and 1992 from colorado (n = 44), kansas (n = 10), and wyoming (n = 9). samples from kit fox were collected in california (n = 86), new mexico (n = 18), utah (n = 9), and arizona (n = 6). overall antibody prevalence rates were 33 of 110 (30%) for canine parvovirus (cpv), 9 of 72 (13%) for canine distemper virus ( ...200011085448
exposure of hooded capuchin monkeys (cebus apella cay) to a rabid bat at a zoological park.on 27 may 1999, a big brown bat (eptesicus fuscus) was discovered on an island exhibit at the denver zoo that contained a troop of 15 hooded capuchin monkeys (cebus apella cay). the monkeys were attacking the bat when it was discovered. the bat was collected and humanely euthanatized without direct handling and submitted to the colorado department of public health and environment virology laboratory for rabies evaluation. the monkeys had not been vaccinated against rabies virus. the next day, th ...200112790408
rabies in a captive colony of big brown bats (eptesicus fuscus).our research has focused on the ecology of commensal populations of big brown bats (eptesicus fuscus) in fort collins, colorado (usa), in relation to rabies virus (rv) transmission. we captured 35 big brown bats (eptesicus fuscus) in late summer 2001 and held them captive for 4.8 mo. the bats were initially placed in an indoor cage for 1 mo then segregated into groups of two to six per cage. two of the bats succumbed to rabies virus (rv) within the first month of capture. despite group housing, ...200415465706
genetic divergence of rabies viruses from bat species of colorado, usa.molecular epidemiological studies have linked many cryptic human rabies cases in the united states with exposure to rabies virus (rv) variants associated with insectivorous bats. in colorado, bats accounted for 98% of all reported animal rabies cases between 1977 and 1996. the genetic divergence of rv was investigated in bat and terrestrial animal specimens that were submitted for rabies diagnosis to the colorado department of public health and environment (cdphe), colorado, usa. rv isolates fro ...200516417429
lack of association between ectoparasite intensities and rabies virus neutralizing antibody seroprevalence in wild big brown bats (eptesicus fuscus), fort collins, colorado.recently, bat ectoparasites have been demonstrated to harbor pathogens of potential importance to humans. we evaluated antirabies antibody seroprevalence and the presence of ectoparasites in big brown bats (eptesicus fuscus) sampled in 2002 and 2003 in colorado to investigate if an association existed between ectoparasite intensity and exposure to rabies virus (rv). we used logistic regression and akaike's information criteria adjusted for sample size (aicc) in a post-hoc analysis to investigate ...200717979542
an analysis of correspondence between unique rabies virus variants and divergent big brown bat (eptesicus fuscus) mitochondrial dna lineages.the literature supports that unique rabies virus (rabv) variants are often compartmentalized in different species of bats. in colorado, two divergent mtdna lineages of big brown bats (eptesicus fuscus) co-occur. rabv associated with this species also segregates into two clades. we hypothesized that unique rabv variants might be associated with mtdna lineages of colorado big brown bats. dna was extracted from brain tissue of rabid big brown bats, the nd2 gene was amplified to determine mtdna line ...200818398562
host and viral ecology determine bat rabies seasonality and maintenance.rabies is an acute viral infection that is typically fatal. most rabies modeling has focused on disease dynamics and control within terrestrial mammals (e.g., raccoons and foxes). as such, rabies in bats has been largely neglected until recently. because bats have been implicated as natural reservoirs for several emerging zoonotic viruses, including sars-like corona viruses, henipaviruses, and lyssaviruses, understanding how pathogens are maintained within a population becomes vital. unfortunate ...201121646516
variability in seroprevalence of rabies virus neutralizing antibodies and associated factors in a colorado population of big brown bats (eptesicus fuscus).in 2001-2005 we sampled permanently marked big brown bats (eptesicus fuscus) at summer roosts in buildings at fort collins, colorado, for rabies virus neutralizing antibodies (rvna). seroprevalence was higher in adult females (17.9%, n = 2,332) than males (9.4%, n = 128; p = 0.007) or volant juveniles (10.2%, n = 738; p<0.0001). seroprevalence was lowest in a drought year with local insecticide use and highest in the year with normal conditions, suggesting that environmental stress may suppress ...201424465996
serologic survey for cross-species pathogens in urban coyotes (canis latrans), colorado, usa.abstract as coyotes (canis latrans) adapt to living in urban environments, the opportunity for cross-species transmission of pathogens may increase. we investigated the prevalence of antibodies to pathogens that are either zoonotic or affect multiple animal species in urban coyotes in the denver metropolitan area, colorado, usa, in 2012. we assayed for antibodies to canine parvovirus-2, canine distemper virus, rabies virus, toxoplasma gondii, yersinia pestis, and serotypes of leptospira interrog ...201425121408
prevalence of neutralizing antibodies to rabies virus in serum of seven species of insectivorous bats from colorado and new mexico, united states.we determined the presence of rabies-virus-neutralizing antibodies (rvna) in serum of 721 insectivorous bats of seven species captured, sampled, and released in colorado and new mexico, united states in 2003-2005. a subsample of 160 bats was tested for rabies-virus rna in saliva. we sampled little brown bats (myotis lucifugus) at two maternity roosts in larimer county, colorado; big brown bats (eptesicus fuscus) at three maternity roosts in morgan county, colorado; and big brown bats at five mat ...201323568912
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