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studies on helminths of north carolina vertebrates. ii. ascocotyle ampullacea sp. n. (trematoda: heterophyidae) from raccoon. 196214474002
rabies in wildlife in latvia.in the baltic states, lyssaviruses are often detected in wildlife and presumed to constitute an important public health hazard. in order to decrease rabies incidence and eradicate wildlife reservoirs, a national rabies eradication program has been in place. since 1970 a vaccination program in dogs and cats has been executed, and in 1991 oral vaccination of foxes was started. however, due to an insufficient budget, the latter was not done regularly and nationwide before 2000. now, the program in ...200314511581
application of phylogeny reconstruction and character-evolution analysis to inferring patterns of directional microbial transmission.i used phylogenetic analyses to reconstruct patterns of directional interspecific transmission during a pseudorabies virus outbreak in illinois, usa, in 1989. isolates were recovered from five species: cattle, sheep, goats, pigs, and raccoons (procyon lotor). i generated dna sequences for 16 isolates of pseudorabies virus at the glycoprotein c gene, from which i constructed phylogenetic trees. i then used these trees, in combination with parsimony-based analyses of character evolution, to infer ...200314516717
skunk and raccoon rabies in the eastern united states: temporal and spatial analysis.since 1981, an epizootic of raccoon rabies has spread throughout the eastern united states. a concomitant increase in reported rabies cases in skunks has raised concerns that an independent maintenance cycle of rabies virus in skunks could become established, affecting current strategies of wildlife rabies control programs. rabies surveillance data from 1981 through 2000 obtained from the health departments of 11 eastern states were used to analyze temporal and spatial characteristics of rabies ...200314519253
physiological adaptations of the raccoon dog (nyctereutes procyonoides) to seasonal fasting-fat and nitrogen metabolism and influence of continuous melatonin treatment.the raccoon dog (nyctereutes procyonoides) is a middle-sized canid with profound autumnal fattening followed by winter sleep. this study investigated the effects of prolonged fasting-induced winter sleep on the fat and nitrogen metabolism of the species. half of the animals were treated with continuous-release melatonin implants to induce artificial short photoperiod. autumnal accumulation of fat was characterized by low plasma free fatty acid (ffa), diacylglycerol (dg), and triacylglycerol (tg) ...200414520494
detection of echinococcus multilocularis antigens in faeces by elisa.faecal samples deriving from 391 animals belonging to nine species (polecats, badgers, martens, weasels, rats, dogs, cats, red foxes, raccoon-dogs) were examined by capture elisa for the presence of the echinococcus multilocularis coproantigen. the main claim of our studies is the reliable detection of e. multilocularis coproantigens, mainly in the faeces of foxes, dogs and cats. for the first time in coproantigen detection we used a "double-sandwich" elisa. the main advantage of this method is ...200314530971
[a case of gastric ulcer induced by helicobacter heilmannii-like organism].recently, there was growing interest in a gastric spiral-shaped bacterium morphologically deviating from helicobacter pylori (h. pylori), which was classified as helicobacter heilmannii (h. heilmannii). it rarely inhabits human species whereas the observation of structurally comparable bacteria in other mammals, including cats and dogs, is a commonplace. therefore, it is now generally recognized that h. heilmannii is an animal helicobacter, which is occasionally transmitted to man. h. heilmannii ...200314532733
prevalence of igg antibody to sars-associated coronavirus in animal traders--guangdong province, china, 2003.severe acute respiratory syndrome (sars) was identified in 2003 as an infectious disease caused by the sars-associated coronavirus (sars-cov), a member of the coronavirus family not observed previously in humans. because its sequence data differ from that of known human coronaviruses, sars-cov is suspected to have crossed the species barrier between an animal host and humans. the sars outbreak began in china's guangdong province, where approximately 1,500 probable cases were identified during no ...200314561956
organ scaling in the raccoon dog nyctereutes procyonoides gray 1834, as monitored by influences of internal and external factors.1. animals fed a high energy ration had bigger body weight, and bigger heart, brain and genitals then animals fed a normal diet, but they had substantially smaller liver, kidneys, adrenals and thyroid glands than the otherwise smaller animals. restricted feeding did not necessarily produce smaller organ sizes than normal. 2. the yearly variation in organ sizes was astonishingly large whereas the sex differences were rather rare. 3. for organs like liver, kidneys and thyroid glands the conclusion ...198514577411
isolation of streptococcus canis from a japanese raccoon dog with fibrinous pleuropneumonia. 200314584580
seasonal changes in spermatogenesis and testicular steroidogenesis in wild male raccoon dogs (nyctereutes procynoides).testes of 15 wild adult male raccoon dogs (nyctereutes procynoides) obtained from september 2000 to april 2001 were studied to clarify seasonal changes in spermatogenesis and testicular steroidogenesis. there were marked seasonal variations in the testis weight and size with values relatively low in september and highest in march. spermatogonia and primary spermatocytes were observed in september, while spermatogonia, spermatocytes and round spermatids were present in january, and all types of s ...200314600346
first human death associated with raccoon rabies--virginia, 2003.rabies is an acute, progressive, incurable viral encephalitis, caused by the bite of an infected animal. in march 2003, a previously healthy man aged 25 years from northern virginia died from a diagnosed illness of meningoencephalitis of unknown etiology after a 3-week illness. histopathologic review of central nervous system tissues at cdc revealed viral inclusions suggestive of negri bodies, and subsequent tests confirmed a diagnosis of rabies. genetic sequencing identified a rabies virus vari ...200314614408
[blood feeding sources and peridomiciliation of lutzomyia longipalpis (lutz & neiva, 1912) (psychodidae, phlebotominae)].a precipitin test was employed to study the alimentary tract content of lutzomyia longipalpis in the intra- and peridomiciliary environments in the municipality of raposa, maranh o state, a transmission area for visceral leishmaniasis or kala azar. out of 2,240 female sandflies captured, 547 (24.4%) had fed on vertebrate blood, with the following proportions: avian (87.9%); rodent (47.2%); human (42.4%); canine (27.6%); opossum (26.6%); and equine (22.5%). based on a survey of 120 human dwelling ...200314666218
rabies surveillance in the united states during 2002.during 2002, 49 states and puerto rico reported 7,967 cases of rabies in nonhuman animals and 3 cases in human beings to the centers for disease control and prevention, an increase of 7.2% from the 7,436 cases in non-human animals and 1 case in a human being reported in 2001. more than 92% (7,375 cases) were in wild animals, whereas 7.4% (592) were in domestic species (compared with 93.3% in wild animals and 6.7% in domestic species in 2001). compared with cases reported in 2001, the numbers of ...200314690203
seroprevalence of antibodies to neospora caninum in dogs and raccoon dogs in korea.neospora caninum is an important cause of abortion in cattle, and dogs are its only known definitive host. its seroprevalence among domestic urban and rural dogs and feral raccoon dogs (nyctereutes procyonoides koreensis) in korea was studied by indirect fluorescent antibody test (ifat) and by the neospora agglutination test (nat), respectively. antibodies to n. caninum were found in 8.3% of urban dogs and in 21.6% of dogs at dairy farms. antibody titers ranged from 1:50 to 1:400. antibodies to ...200314699266
comparative chromosome painting defines the karyotypic relationships among the domestic dog, chinese raccoon dog and japanese raccoon dog.the chinese raccoon dog (nyctereutes procyonoides procyonoides, 2n = 54 + 2-3 b) and japanese raccoon dog (nyctereutes p. viverrinus, 2n = 38 + 3-4 b) are two subspecies of the same species. the genome-wide comparative chromosome map between the japanese raccoon dog and domestic dog (canis familiaris) has been established by fluorescence in-situ hybridization with a set of domestic dog painting probes. in this study, we established the comparative chromosome map for the chinese raccoon dog and d ...200314712859
failure to detect prion protein (prpres) by immunohistochemistry in striated muscle tissues of animals experimentally inoculated with agents of transmissible spongiform encephalopathy.transmissible spongiform encephalopathies (tses) are fatal neurologic diseases. infection by the causative agent, a prion, induces accumulations of an abnormal form of prion protein (prp(res)) in tissues of nervous and lymphoid systems. presence of characteristic histopathologic changes (spongiform encephalopathy) and detection of protease-resistant prp(res) in neural and lymphoid tissues are the basis of currently available methods for diagnosis of tses. in this study, samples of striated muscl ...200414715973
raccoon roundworm eggs near homes and risk for larva migrans disease, california communities.the raccoon roundworm, baylisascaris procyonis, is increasingly recognized as a cause of serious or fatal larva migrans disease in humans and animals. we assessed the potential for infection in three northern california communities by determining the density and distribution of raccoon latrines, where transmission primarily occurs, and the prevalence of eggs at private residences. we collected fecal samples from 215 latrines and found that 44%-53% of the latrines contained b. procyonis eggs and ...200314720389
baylisascaris procyonis in the metropolitan atlanta area.baylisascaris procyonis, the raccoon roundworm responsible for fatal larva migrans in humans, has long been thought to be absent from many regions in the southeastern united states. during spring 2002, 11 (22%) of 50 raccoons trapped in dekalb county, georgia, had b. procyonis infection. the increasing number of cases highlight this emerging zoonotic infection.200314720412
environmental and human demographic features associated with epizootic raccoon rabies in maryland, pennsylvania, and virginia.we assessed land use and demographic data as predictors discriminating between counties experiencing large or small first epizootics of rabies among raccoons (procyon lotor). monthly county reports of raccoons testing positive for rabies were obtained from rabies surveillance databases from maryland, pennsylvania, and virginia (usa). environmental and demographic data for the three states were obtained from public sources. on the basis of total reports of raccoon rabies during the first defined ...200314733282
a serosurvey of leptospirosis in connecticut peridomestic wildlife.recently, leptospirosis has gained attention as a re-emerging infection in domestic dogs in the northeastern united states. in order to gain insight into the epizootiology of leptospirosis in this region, 109 small wild mammals (31 raccoons (procyon lotor), 30 skunks (mephitis mephitis), 28 opossums (didelphis virginiana), and 20 gray squirrels (sciurus carolinensis)) collected between february 27 and september 17, 2001 were tested for serologic evidence of exposure to five common leptospira ser ...200314733671
clinical evaluation of rabies virus meningoencephalomyelitis in a dog.a 6-month-old, female, mixed-breed dog presented for acute, progressive, flaccid paraplegia and bilateral pelvic-limb hyperesthesia. a lymphocytic pleocytosis with 366 mg/dl protein was found on cerebral spinal fluid (csf) evaluation. electromyography (emg) demonstrated positive sharp waves and fibrillations in the left pelvic limb; the m wave of the left sciatic nerve was not obtainable by nerve stimulation. seizures and dementia began during recovery from anesthesia. six days after onset of pa ...200314736720
wet markets--a continuing source of severe acute respiratory syndrome and influenza?context: live-animal markets (wet markets) provide a source of vertebrate and invertebrate animals for customers in tropical and subtropical regions of the world. wet markets sell live poultry, fish, reptiles, and mammals of every kind. live-poultry markets (mostly chicken, pigeon, quail, ducks, geese, and a wide range of exotic wild-caught and farm-raised fowl) are usually separated from markets selling fish or red-meat animals, but the stalls can be near each other with no physical separation. ...200414738798
comparative chromosomal localization of the canine-derived bac clones containing lep and igf1 genes in four species of the family canidae.in the present report we show the chromosomal localization of two bac clones, carrying the leptin (lep) and insuline-like growth factor 1 (igf1) genes, respectively, in four species belonging to the family canidae: the dog, red fox, arctic fox and the chinese raccoon dog. the assignments are in agreement with earlier data obtained from comparative chromosome painting for the dog, red fox and arctic fox.200314970714
development of a cytogenetic map for the chinese raccoon dog (nyctereutes procyonoides procyonoides) and the arctic fox (alopex lagopus) genomes, using canine-derived microsatellite probes.new chromosomal assignments of canine-derived cosmid clones containing microsatellites to the chinese raccoon dog and arctic fox genomes are presented in the study. the localizations are in agreement with data obtained from comparative chromosome painting experiments between the dog and arctic fox genomes. however, paracentric inversions have been detected by comparing the loci order in canid karyotypes. the number of physically mapped loci increased to thirty-five both in the chinese raccoon do ...200314970715
transmission of transmissible mink encephalopathy to raccoons (procyon lotor) by intracerebral inoculation.to determine the transmissibility of transmissible mink encephalopathy (tme) agent to raccoons and to provide information about clinical course, lesions, and suitability of currently used diagnostic procedures for detection of transmissible spongiform encephalopathies (tses) in raccoons, 4 raccoon kits were inoculated intracerebrally with a brain suspension from mink experimentally infected with tme. one uninoculated raccoon kit served as a control. all 4 animals in the tme-inoculated group show ...200414974848
continuous melatonin treatment and fasting in the raccoon dog (nyctereutes procyonoides)--vernal body weight regulation and reproduction.the raccoon dog (nyctereutes procyonoides) is a canid omnivore with marked seasonal changes in its body adiposity. the aim of this study was to investigate the roles of melatonin, leptin, ghrelin and growth hormone (gh) in weight regulation and reproduction of the species. sixteen raccoon dogs were treated with continuous-release melatonin implants in aug 2000 and in feb 2001 (the mel group) and 16 animals were sham-operated (the sham group). half of the raccoon dogs were fasted between nov 27(t ...200414993828
a priori prediction of disease invasion dynamics in a novel environment.directly transmitted infectious diseases spread through wildlife populations as travelling waves away from the sites of original introduction. these waves often become distorted through their interaction with environmental and population heterogeneities and by long-distance translocation of infected individuals. accurate a priori predictions of travelling waves of infection depend upon understanding and quantifying these distorting factors. we assess the effects of anisotropies arising from the ...200415002767
molecular and biologic characteristics of toxoplasma gondii isolates from wildlife in the united states.toxoplasma gondii isolates can be grouped into 3 genetic lineages. type i isolates are considered more virulent in outbred mice and have been isolated predominantly from clinical cases of human toxoplasmosis, whereas types ii and iii isolates are considered less virulent for mice and are found in humans and food animals. little is known of genotypes of t. gondii isolates from wild animals. in the present report, genotypes of isolates of t. gondii from wildlife in the united states are described. ...200415040668
first record of cryptosporidium infection in a raccoon dog (nyctereutes procyonoides viverrinus).cryptosporidium species have been found in more than 150 species of mammals, but there has been no report in raccoon dogs. here we found the cryptosporidium organism in a raccoon dog, nyctereutes procyonoides viverrinus, and identified this isolate using pcr-based diagnostic methods. cryptosporidium diagnostic fragments of the 18s ribosomal rna, cryptosporidium oocyst wall protein and 70-kda heat shock protein genes were amplified from the isolate and sequenced to reveal the phylogenetic relatio ...200415041092
occurrence of the gulf coast tick (acari: ixodidae) on wild and domestic mammals in north-central oklahoma.parasitic life stages of amblyomma maculatum koch were collected from domestic cattle and several species of wild mammals during a 3.5-yr study (may 1998-october 2001) in north-central oklahoma. adult ticks were the predominant life stage collected from cattle, white-tailed deer, coyotes, and raccoons, whereas only immature ticks were collected from cotton rats and white-footed mice. the prevalence of adult a. maculatum on white-tailed deer (n = 15) examined in june, july, and august 1998 was 80 ...200415061275
effective primary isolation of wild-type canine distemper virus in mdck, mv1 lu and vero cells without nucleotide sequence changes within the entire haemagglutinin protein gene and in subgenomic sections of the fusion and phospho protein genes.canine distemper virus (cdv) is an important pathogen of many carnivores. we are developing a field-based model of morbillivirus virulence and pathogenesis through a study of distemper in naturally infected free-ranging raccoons. the isolation of cdv from raccoon tissues is essential for this work. cdv has often been isolated from animals only after co-cultivation of infected tissues with peripheral blood mononuclear cells derived from specific pathogen-free dogs or similar methods. we explored ...200415081610
butyltin residues in livers of humans and wild terrestrial mammals and in plastic products.butyltin compounds (bts) including mono-(mbt), di-(dbt) and tributyltin (tbt) were determined in livers of humans and wild terrestrial mammals, such as raccoon dogs (nyctereutes procyonoids) and monkeys (macaca fuscata) from japan. in addition, 22 samples of plastic products were analyzed. bt residues were detected in all the liver samples of humans and raccoon dogs, with concentrations of <360 ng/g wet wt, whereas concentrations in the liver of monkeys were either less than the detection limit ...199915093048
changes in corticothalamic modulation of receptive fields during peripheral injury-induced reorganization.the influence of corticothalamic projections on the thalamus during different stages of reorganization was determined in anesthetized raccoons that had undergone previous removal of a single forepaw digit. single-unit recordings were made from 522 sites in the somatosensory nucleus of the thalamus (ventroposterior lateral nucleus) before and after lesioning parts of primary somatosensory cortex. in those parts of ventroposterior lateral nucleus that had intact input from the periphery, the corti ...200415100406
seasonal physiology of the wild raccoon dog (nyctereutes procyonoides).the raccoon dog (nyctereutes procyonoides) is a canid omnivore with autumnal fattening and winter sleep. farmraised raccoon dogs have elevated plasma leptin and growth hormone levels in the winter and depressed plasma cortisol and insulin concentrations during wintertime food deprivation. however, these parameters were not previously tested in the wild population. in the present study 37 wild raccoon dogs were sampled at different seasons and diverse biochemical variables were determined. the re ...200415118225
the dog genome map and its use in mammalian comparative genomics.the dog genome organization was extensively studied in the last ten years. the most important achievements are the well-developed marker genome maps, including over 3200 marker loci, and a survey of the dna genome sequence. this knowledge, along with the most advanced map of the human genome, turned out to be very useful in comparative genomic studies. on the one hand, it has promoted the development of marker genome maps of other species of the family canidae (red fox, arctic fox, chinese racco ...200415131351
proliferation of protease-enriched mast cells in sarcoptic skin lesions of raccoon dogs.skin sites, tongue, lung, liver, jejunum and rectum from two raccoon dogs with sarcoptes scabiei infestation and five normal (control) raccoon dogs were examined in terms of the distribution, proteoglycan properties and protease activity of mast cells. infestation with s. scabiei caused a significant increase in the number of dermal mast cells. while the number of mast cells (average +/- standard deviation) in specimens of skin from the dorsum, dorsal neck, dorsal hind foot and dorsal fore foot ...200415144797
temporal dynamics of rabies in a wildlife host and the risk of cross-species transmission.an epidemiological model was developed for rabies, linking the risk of disease in a secondary species (cats) to the temporal dynamics of disease in a wildlife reservoir (raccoons). data were obtained from cats, raccoons, and skunks tested for rabies in the northeastern united states during 1992-2000. an epizootic algorithm defined a time-series of successive intervals of epizootic and inter-epizootic raccoon rabies. the odds of diagnosing a rabid cat during the first epizootic of raccoon rabies ...200415188720
observation of helicobacter-like organisms in gastric mucosa of grey foxes (urocyon cinereoargenteus) and bobcats (lynx rufus).archival specimens of gastric mucosa of 10 raccoons (procyon lotor), 9 porcupines (erethizon dorsatum), 6 grey foxes (urocyon cinereoargenteus), 6 bobcats (lynx rufus), 4 skunks (mephitis mephitis), and 3 black bears (ursus americanus) were microscopically examined for evidence of helicobacter-like organisms. such organisms were seen in the specimens from the grey foxes and bobcats only. histochemical stains (modified steiner and carbol fuchsin methods) revealed long spiral organisms within lumi ...200415188962
raccoon poxvirus as a mucosal vaccine vector for domestic cats.in the present study, we evaluated both the immunogenicity and safety of recombinant raccoon poxvirus (rcn) as a mucosal vaccine vector for domestic cats. rcn is an orthopoxvirus that was isolated from healthy raccoons and has been used experimentally as a vaccine vector for rabies and other antigens in a variety of species, including raccoons, skunks, foxes, bobcats, rabbits, domestic cats, piglets, sheep and non-human primates. we evaluated the antibody response induced by a recombinant rcn va ...200315203914
retrospective study of mercury in raccoons (procyon lotor) in south florida.museum and recent collections of raccoon hair were used to assess whether temporal or spatial trends existed in mmhg distributions in south florida. the hypothesis that mmhg in raccoon hair had remained the same since 1947 could not be rejected. some sampling regions showed increases while others did not. however, large differences existed between sites, amounting to a factor of 20 for raccoons collected during 2000 and during the period prior to 1960 (museum samples). raccoon feeding behavior a ...200415217245
retrospective and current risks of mercury to panthers in the florida everglades.florida panthers are an endangered species inhabiting south florida. hg has been suggested as a causative factor for low populations and some reported panther deaths, but a quantitative assessment of risks has never been performed. this study quantitatively evaluated retrospective (pre-1992) and current (2002) risks of chronic dietary hg exposures to panthers in the florida everglades. a probabilistic assessment of hg risks was performed using a dietary exposure model and latin hypercube samplin ...200415217246
the absence of anti-rabies antibody in the sera of feral raccoons (procyon lotor) captured in hokkaido, japan.feral raccoons captured in hokkaido, japan were examined for the presence of rabies virus neutralizing antibody (vna). between 2000 to 2002, 741 serum samples were collected and then subjected to vna titer determination by rapid fluorescent focus inhibition test (rffit). sera showing rffit titers of > or =1:25 have been considered as positive according to previous reports. vna was detected in none of serum samples from the feral raccoons. the present study provides valuable background informatio ...200415218220
limited infection upon human exposure to a recombinant raccoon pox vaccine vector.a laboratory accident resulted in human exposure to a recombinant raccoon poxvirus (rcn) developed as a vaccine vector for antigens of yersinia pestis for protection of wild rodents (and other animals) against plague. within 9 days, the patient developed a small blister that healed within 4 weeks. raccoon poxvirus was cultured from the lesion, and the patient developed antibody to plague antigen (f1) and rcn. this is the first documented case of human exposure to rcn.200415246608
sarcocystis neurona (protozoa: apicomplexa): description of oocysts, sporocysts, sporozoites, excystation, and early development.equine protozoal myeloencephalitis is a major cause of neurological disease in horses from the americas. horses are considered accidental intermediate hosts. the structure of sporocysts of the causative agent, sarcocystis neurona, has never been described. sporocysts of s. neurona were obtained from the intestines of a laboratory-raised opossum fed skeletal muscles from a raccoon that had been fed sporocysts. sporocysts were 11.3 by 8.2 microm and contained 4 sporozoites. the appearance of the s ...200415272465
progressive elevations in ampa and gabaa receptor levels in deafferented somatosensory cortex.restricted receptive fields (rfs), a hallmark of mature sensory systems, are actively maintained by a balance between ascending excitation and local inhibition in the cortex. deafferentation disrupts this balance, allowing a sequence of changes in neuronal response properties that culminate in the reorganization of cortical rfs. to explore the molecular basis of deafferentation-induced rf reorganization, we tracked changes in ampa receptor (ampar), nmda receptor (nmdar) and gabaa receptor (gabaa ...200415312173
protection of black-tailed prairie dogs (cynomys ludovicianus) against plague after voluntary consumption of baits containing recombinant raccoon poxvirus vaccine.prairie dogs (cynomys spp.) are highly susceptible to yersinia pestis and significant reservoirs of plague for humans in the western united states. a recombinant raccoon poxvirus, expressing the f1 antigen of y. pestis, was incorporated into a palatable bait and offered to 18 black-tailed prairie dogs (cynomys ludovicianus) for voluntary consumption; 18 negative control animals received placebo baits. antibody titers against y. pestis f1 antigen increased significantly (p < 0.01) in vaccinees, a ...200415322054
larva migrans by baylisascaris transfuga: fatal neurological diseases in mongolian jirds, but not in mice.raccoon roundworms (baylisascaris procyonis) and other baylisascaris species cause patent or latent larva migrans (lm) in a variety of mammals and birds, including humans. it is not clear whether lm by baylisascaris transfuga, roundworms of bears, is associated with clinical neurological disorders. to clarify this issue, icr and balb/c mice as well as mongolian jirds (meriones unguiculatus) were orally inoculated with 2,000-5,000 embryonated eggs of b. transfuga. in mice, the ascarid caused symp ...200415357068
prevalence of agglutinating antibodies to sarcocystis neurona in raccoons (procyon lotor) from an urban area of virginia.equine protozoal myeloencephalitis is the most important protozoan disease of horses in north america and is usually caused by sarcocystis neurona. natural and experimentally induced cases of encephalitis caused by s. neurona have been reported in raccoons (procyon lotor) and raccoons are an intermediate host for this parasite. a 3-yr-long serological survey was conducted to determine the prevalence of agglutinating antibodies to s. neurona in raccoons collected from fairfax county, virginia, a ...200415357091
exposure time of oral rabies vaccine baits relative to baiting density and raccoon population density.oral rabies vaccination (orv) baiting programs for control of raccoon (procyon lotor) rabies in the usa have been conducted or are in progress in eight states east of the mississippi river. however, data specific to the relationship between raccoon population density and the minimum density of baits necessary to significantly elevate rabies immunity are few. we used the 22-km2 us national aeronautics and space administration plum brook station (pbs) in erie county, ohio, usa, to evaluate the per ...200415362821
sarcoptic mange in raccoons in michigan.sarcoptic mange is a cause of pruritic skin disease in domestic dogs and a wide range of wildlife species. we describe sarcoptic mange in free-ranging raccoons (procyon lotor). three adult raccoons from upper wayne county, michigan (usa), were captured, killed, and submitted for diagnostic evaluation. the animals were intensely pruritic, and two had advanced alopecic and crusting lesions over their dorsum and hind limbs. skin scrapings and skin biopsies revealed crusting and hyperkeratotic derma ...200415362840
raccoon ascarids as a cause of larva migrans. 198615462855
campylobacter jejuni and arcobacter species associated with intussusception in a raccoon (procyon lotor). 200415470973
genetically distant american canine distemper virus lineages have recently caused epizootics with somewhat different characteristics in raccoons living around a large suburban zoo in the usa.mortality rates have differed during distemper outbreaks among free-ranging raccoons (procyon lotor) living around a large chicago-area zoo, and appeared higher in year 2001 than in 1998 and 2000. we hypothesized that a more lethal variant of the local canine distemper virus (cdv) lineage had emerged in 2001, and sought the genetic basis that led to increased virulence. however, a more complex model surfaced during preliminary analyses of cdv genomic sequences in infected tissues and of virus is ...200415507154
[phylogenetic analysis of two rabies viruses, takamen and komatsugawa strains isolated in japan in the 1940's].the entire coding region of the nucleoprotein (n) gene of takamen and komatsugawa strains of rabies virus isolated in japan in 1940's were determined. phylogenetic analysis was performed on 140 lyssaviruses (128 viruses of genotype 1 and 12 lyssaviruses of other genotypes) isolated in various parts of the world, including the two japanese rabies strains, based on the sequences of 1,350 nucleotides of the n gene. the rabies viruses were divided into 12 distinct clusters at least, reflecting geogr ...200415508715
raccoon roundworm encephalitis.the raccoon roundworm, baylisascaris procyonis, is increasingly recognized as a cause of zoonotic visceral, ocular, and neural larva migrans and, in particular, of devastating encephalitis in young children. exposure occurs mainly at raccoon latrines, where large numbers of infective eggs may be accidentally ingested. risk factors for infection include contact with raccoon latrines, pica/geophagia, age of <4 years, and male sex. the severity of central nervous system (cns) disease depends on the ...200415546085
endocrine response to fasting in the overwintering captive raccoon dog (nyctereutes procyonoides).the raccoon dog (nyctereutes procyonoides) is an omnivorous canid utilizing the passive wintering strategy in the boreal climate. farmed raccoon dogs (n=12) were randomly assigned into two study groups on 26 november 2003. between 3 december 2003 and 27 january 2004, half of the animals were fasted for 8 weeks and plasma weight-regulatory hormone concentrations determined on 26 november and 30 december 2003 and on 27 january 2004. the plasma peptide yy, ghrelin, and growth hormone (gh) concentra ...200415562452
localization of epidermal hyaluronan in the foot pads of the north american raccoon (procyon lotor).the localization of the epidermal hyaluronan in the digital foot pads of the north american raccoon (procyon lotor) was examined by light and electron microscopic histochemical methods. the thick epidermis contained five epidermal layers composed of typical keratinocytes. in the stratum basale and stratum spinosum, hyaluronic acid was clearly detectable at cytoplasmic processes, in close vicinity to the surface coat of the plasma membrane, and/or in the intercellular space between the basal and ...200415570887
genotypes of cryptosporidium species infecting fur-bearing mammals differ from those of species infecting humans.of 471 specimens examined from foxes, raccoons, muskrats, otters, and beavers living in wetlands adjacent to the chesapeake bay, 36 were positive for five types of cryptosporidium, including the c. canis dog and fox genotypes, cryptosporidium muskrat genotypes i and ii, and cryptosporidium skunk genotype. thus, fur-bearing mammals in watersheds excreted host-adapted cryptosporidium oocysts that are not known to be of significant public health importance.200415574965
immunohistochemical localization of steroidogenic enzymes in the testis of hokkaido sika deer (cervus nippon yesoensis).the testes from 15 adult male hokkaido sika deer (cervus nippon yesoensis) were collected during the rutting season (october and november). we investigated the localization of 4 kinds of steroidogenic enzymes (p450scc, 3betahsd, p450c17 and p450arom) immunohistochemically in these testicular samples. the specific immunoreactivities to these enzymes were detected only in the cytoplasm of leydig cells. this differs to the enzyme distributions reported previously in japanese black bear, japanese ra ...200415585968
rabies surveillance in the united states during 2003.during 2003, 49 states and puerto rico reported 7,170 cases of rabies in nonhuman animals and 3 cases in human beings to the cdc. this represents a 10% decrease from the 7,967 cases in nonhuman animals and 3 cases in human beings reported in 2002. more than 91 (n = 6,556) were in wild animals, and 8.6% (614) were in domestic species (compared with 92.5% in wild animals and 74% in domestic species in 2002). the relative contributions of the major groups of animals were as follows: 2,635 raccoons ...200415643834
ultracytochemical demonstration of glycoproteins in the eccrine glands of the digital pads of the north american raccoon (procyon lotor).in the eccrine glands of the digital pads of the north american raccoon (procyon lotor), ultrastructural localization of glycoproteins with various saccharide residues was studied using preferably lectin cytochemical methods. secretory granules observed in the dark cells exhibited glycoproteins with different terminal sugars (alpha-d-mannose, beta-d-galactose, beta-n-acetyl-d-glucosamine and sialic acid). the cytoplasm of the clear cells contained numerous glycogen particles. several sugars were ...200515649229
molecular epidemiology of terrestrial rabies in the former soviet union.fifty-five rabies virus isolates originating from different regions of the former soviet union (fsu) were compared with isolates originating from eurasia, africa, and north america according to complete or partial nucleoprotein (n) gene sequences. the fsu isolates formed five distinct groups. group a represented viruses originating from the arctic, which were similar to viruses from alaska and canada. group b consisted of "arctic-like" viruses, originating from the south of east siberia and the ...200415650080
field immobilization of raccoons (procyon lotor) with telazol and xylazine.the effectiveness of tiletamine plus zolazepam (telazol) and xylazine was evaluated as an immobilizing combination for raccoons (procyon lotor). fifteen raccoons were injected intramuscularly with a 3:2 mixture of telazol (3.2+/-0.6 mg/kg [mean+/-sd]) and xylazine (2.1+/-0.4 mg/kg) at pictured rocks national lakeshore, michigan, usa, during may-october, 2001-03. mean induction time was 4.8+/-3.8 min; mean recovery time was 128.5+/-48.4 min. no linear relationships were found between the amount ( ...200415650101
spatial dynamics and molecular ecology of north american rabies.rabies, caused by a single-stranded rna virus, is arguably the most important viral zoonotic disease worldwide. although endemic throughout many regions for millennia, rabies is also undergoing epidemic expansion, often quite rapid, among wildlife populations across regions of europe and north america. a current rabies epizootic in north america is largely attributable to the accidental introduction of a particularly well-adapted virus variant into a naive raccoon population along the virginia/w ...200515677743
a comparative histological study on the distribution of striated and smooth muscles and glands in the esophagus of wild birds and mammals.musculature and glands of the esophagus in various wild birds and mammals were examined histologically. cervical and thoracic esophagi of all birds used (mallard, spot-billed duck, ural owl and hodgson's hawk-eagle) were comprised of smooth muscle fibers only. in contrast, esophagi of the nutria, japanese raccoon dog, common raccoon and japanese marten consisted largely of striated muscle fibers. in the masked palm civet, japanese macaque and bottlenose dolphin, esophageal muscle layers consiste ...200515699607
karyotype of canine soft tissue sarcomas: a multi-colour, multi-species approach to canine chromosome painting.many canine tumour types represent useful models for tumours also found in humans. studies of chromosomal abnormalities in canine tumours have been impeded by the complexity of the canine karyotype (2n = 78), which has made accurate identification of rearranged chromosomes difficult and laborious. to overcome this difficulty we have developed a seven-colour paint system for canine chromosomes, with six sets of chromosome paints covering all chromosomes except y. several pairs of canine autosomes ...200415702421
severe and fatal central nervous system disease in humans caused by baylisascaris procyonis, the common roundworm of raccoons: a review of current literature.baylisascaris procyonis, a parasitic infection of raccoons, causes severe neurologic disease in humans when infective eggs from raccoon feces are ingested. definitive diagnosis is challenging, but can be made by isolation of larvae in brain biopsy or exclusion of other potential causes of eosinophilic meningoencephalitis. prevention efforts are critical due to the lack of effective treatment.200515715975
histochemical analysis of glycoconjugates in the eccrine glands of the raccoon digital pads.the distribution and selectivity of complex carbohydrates in the eccrine glands of the digital pads in the north american raccoon (procyon lotor) were studied using light and electron microscopic histochemical methods, particularly lectin histochemistry. in the eccrine glands, the dark cells exhibited neutral and acidic glycoconjugates with different saccharide residues (alpha-l-fucose, beta-d-galactose, beta-n-acetyl-d-glucosamine and n-acetyl-neuraminic acid); the clear cells contained numerou ...200815718206
predictive spatial dynamics and strategic planning for raccoon rabies emergence in ohio.rabies is an important public health concern in north america because of recent epidemics of a rabies virus variant associated with raccoons. the costs associated with surveillance, diagnostic testing, and post-exposure treatment of humans exposed to rabies have fostered coordinated efforts to control rabies spread by distributing an oral rabies vaccine to wild raccoons. authorities have tried to contain westward expansion of the epidemic front of raccoon-associated rabies via a vaccine corridor ...200515737065
oral vaccination of wildlife against rabies: opportunities and challenges in prevention and control.rabies is an acute, progressive, fatal encephalitis caused by viruses in the family rhabdoviridae, genus lyssavirus. rabies virus is the representative member of the group. warm-blooded vertebrates are susceptible to experimental infection, but major primary hosts for disease perpetuation encompass bats and mammalian carnivores. the dog is the global reservoir, and important wild carnivores include foxes, raccoons, skunks, and mongoose, among others. traditionally, reliance upon long-term, wides ...200415742629
morphology and glycoconjugate histochemistry of the eccrine glands in the snout skin of the north american raccoon (procyon lotor).the eccrine nasolabial glands were found in the hypodermis of the nasal plane in the north american raccoon (procyon lotor). in addition to light and electron microscopic observations, the distribution and selectivity of complex glycoconjugates in the eccrine tubular glands of the raccoon snout skin were studied using various histochemical methods, particularly lectin staining. the secretory epithelium and the luminal secretions exhibited high amounts of glycoconjugates with various saccharide r ...200515756567
archival study of a finnish isolate from the 1988/89 rabies outbreak.an archival brain sample from an infected dog taken during the 1988/89 rabies outbreak in finland was investigated to confirm that it was infected with classical rabies virus (genotype 1). the first 400 base pairs of the virus nucleoprotein gene were then sequenced and used to undertake a phylogenetic comparison between this isolate and a panel of rabies virus sequences from the baltic region. the finnish dog isolate was identical to a virus isolated from a raccoon-dog also recorded during the 1 ...200515789260
persistence of elevated rabies prevention costs following post-epizootic declines in rates of rabies among raccoons (procyon lotor).determining the benefits to cost relationships among different approaches to rabies control and prevention has been hindered by the inherent temporal variability in the dynamics of disease among wildlife reservoir hosts and a tangible and objective measure of the cost of rabies prevention. a major and unavoidable component of rabies prevention programs involves diagnostic testing of animals and the subsequent initiation of appropriate public health responses. the unit cost per negative and posit ...200515820116
epizootiologic investigations of parvovirus infections in free-ranging carnivores from germany.to assess if wild carnivores in germany play a role in the epizootiology of canine parvovirus (cpv) infection, seroprevalences against cpv in free-ranging carnivores (n=1,496) from selected urban and rural areas were compared. antibodies against cpv were found in sera from red foxes (vulpes vulpes; 136 of 1,442; 9%), raccoon dogs (nyctereutes procyonides; two of 33; 6%), stone martens (martes foina; four of 13; 31%), and pine martens (martes martes; one of two) using the hemagglutination-inhibit ...200515827228
survey of raccoons on key largo, florida, usa, for baylisascaris procyonis.numbers of the endangered key largo woodrat (klwr; neotoma floridana smalli) have been declining for at least 25 yr. the raccoon (procyon lotor) roundworm, baylisascaris procyonis, has been found to have an adverse effect on the survival of alleghany woodrats (n. magister). high densities of raccoons can exacerbate this problem by increasing the amount of feces containing viable eggs of b. procyonis available to woodrats. in 2002, 64 fecal samples were collected and examined for eggs of b. procy ...200515827232
genetic characterization of rabies virus isolates in korea.in investigation of the genetic characteristics of rabies viruses in korea, the nucleotide and deduced amino acid sequences of the nucleoprotein (n) gene were determined in four korean rabies virus strains obtained from dogs and raccoons, and were compared with published sequences for non-korean rabies viruses. three korean rabies virus isolates had identical nucleotide sequences, and the fourth differed at only one nucleotide position. the korean virus isolates had 84.5-92.0% nucleotide sequenc ...200515830152
the development of a spatially explicit model to estimate radiocaesium body burdens in raccoons (procyon lotor) for ecological risk assessment.a spatially explicit model of raccoon (procyon lotor) distribution for the u.s. department of energy's (doe) savannah river site (srs) in west-central south carolina was developed using data from a raccoon radio-telemetry study and visualized within a geographic information system (gis). an inductive approach was employed to develop three sub-models using the ecological requirements of raccoons studied in the following habitats: (1) man-made reservoirs, (2) bottomland hardwood/riverine systems, ...200515833238
the proto-oncogene c-kit maps to canid b-chromosomes.plant and animal karyotypes sometimes contain variable elements, that are referred to as additional or b-chromosomes. it is generally believed that b-chromosomes lack major genes and represent parasitic and selfish elements of a genome. here we report, for the first time, the localization of a gene to b-chromosomes of mammals: red fox (vulpes vulpes) and two subspecies of raccoon dog (nyctereutes procyonoides). identification of the proto-oncogene c-kit on b-chromosomes of two canidae species th ...200515861301
monitoring perchlorate exposure and thyroid hormone status among raccoons inhabiting a perchlorate-contaminated site.perchlorate is a water soluble anion that is readily accumulated in vegetation. it inhibits uptake of iodide into thyroid gland tissue, thereby reducing production of thyroid hormones. potential raccoon food items including berries, fish, and vegetation collected at a contaminated site contained quantifiable concentrations of perchlorate as determined by ion chromatography. therefore, we monitored resident raccoons for exposure to perchlorate by examining plasma perchlorate and thyroid hormone c ...200515869194
serologic evidence of exposure of wild mammals to flaviviruses in the central and eastern united states.serosurveys were conducted to obtain flavivirus and west nile virus (wnv) seroprevalence data from mammals. sera from 513 small- and medium-sized mammals collected during late summer and fall 2003 from colorado, louisiana, new york, ohio, and pennsylvania were screened for flavivirus-specific antibodies. sera samples containing antibody to flaviviruses were screened for wnv-specific antibodies by epitope-blocking enzyme-linked immunosorbent assays and confirmed with plaque reduction neutralizati ...200515891139
altered parasite assemblages in raccoons in response to manipulated resource availability.the role that host aggregation plays in structuring parasite assemblages was examined by experimentally increasing the contact rates of raccoons, procyon lotor. two populations of raccoons in southern new york were monitored for 2 years to determine baseline levels of host interaction and to identify the parasite assemblage. in the third year of the study, one population was provisioned with the addition of clumped food resources, while the other was provisioned with equal quantities of disperse ...200515891856
molecular epizootiology of rabies associated with terrestrial carnivores in mexico.epizootiological patterns of rabies are described, using antigenic and genetic analysis of samples obtained from infected domestic and wild mammals in 20 mexican states during 1976-2002. two independent origins are suggested for rabies in mexican carnivores. one group shares ancestry with canine rabies, while the other group appears to share a common origin with bat rabies in north america. more than 12 sublineages were found in rabid dog populations, suggesting at least six major spatio-tempora ...200515896399
status of oral rabies vaccination in wild carnivores in the united states.persistence of multiple variants of rabies virus in wild chiroptera and carnivora presents a continuing challenge to medical, veterinary and wildlife management professionals. oral rabies vaccination (orv) targeting specific carnivora species has emerged as an integral adjunct to conventional rabies control strategies to protect humans and domestic animals. orv has been applied with progress toward eliminating rabies in red foxes (vulpes vulpes) in western europe and southern ontario, canada. mo ...200515896404
seasonal changes in serum leptin of the feral raccoon (procyon lotor) determined by canine-leptin-specific elisa.several reports have been published on blood leptin concentrations in feral animals, including members of the carnivora, using a commercially available multi-species radioimmunoassay (ria) kit with anti-human leptin antibody. however, we observed weak immunoreactivity between recombinant canine leptin and anti-human leptin antibody, suggesting a limitation in the applicability of the ria kit for leptin assays in carnivora species. we tested the applicability of ria and sandwich enzyme-linked imm ...200515945076
seasonal influence on testicular function of male raccoons, procyon lotor.in order to clarify the breeding capability of male raccoons in japan, the testes of raccoons, a nuisance animal, collected in kanagawa prefecture and hokkaido were histologically inspected. furthermore, testosterone concentrations in their blood were measured. the testosterone concentrations increased in winter and the diameter of seminiferous tubules and the spermatogenetic score decreased in summer for the animals captured in kanagawa prefecture. for the animals captured in hokkaido, the diam ...200515947457
isolation and cloning of the raccoon (procyon lotor) papillomavirus type 1 by using degenerate papillomavirus-specific primers.partial sequences of a novel papillomavirus were amplified from a cutaneous lesion biopsy of a raccoon (procyon lotor), by using pcr with degenerate papillomavirus-specific primers. the procyon lotor papillomavirus type 1 (plpv-1) dna was amplified with long template pcr in two overlapping fragments, together encompassing the entire genome, and the complete plpv-1 genomic sequence was determined. the plpv-1 genome consists of 8170 bp, and contains the typical papillomaviral open reading frames, ...200515958682
sarcoptic mange in free-ranging raccoon dogs (nyctereutes procyonoides) in japan.sarcoptes scabiei infestation was diagnosed in three freshly dead free-ranging raccoon dogs (nyctereutes procyonoides) in kanagawa prefecture, japan. the dogs presented with an alopecic pruritic skin disease, with signs of alopecia on the ears, muzzle, around the eyes, elbow, thigh and the neck, and hyperpigmented and crusted skin lesions, which had a severe malodour. skin scrapings revealed the presence of the mite sarcoptes scabiei. histopathology of lesions demonstrated marked acanthosis, hyp ...200515960631
evidence to support horses as natural intermediate hosts for sarcocystis neurona.opossums (didelphis spp.) are the definitive host for the protozoan parasite sarcocystis neurona, the causative agent of equine protozoal myeloencephalitis (epm). opossums shed sporocysts in feces that can be ingested by true intermediate hosts (cats, raccoons, skunks, armadillos and sea otters). horses acquire the parasite by ingestion of feed or water contaminated by opossum feces. however, horses have been classified as aberrant intermediate hosts because the terminal asexual sarcocyst stage ...200515970386
prevalence of antibodies to trypanosoma cruzi in raccoons (procyon lotor) from an urban area of northern virginia.raccoons (procyon lotor) are reservoir hosts for trypanosoma cruzi. a 3-yr-long serological survey was conducted to determine the prevalence of antibodies to this zoonotic parasite in raccoons collected from fairfax county, virginia, a suburban/urban area outside washington, d.c. serum samples from 464 raccoons were examined for t. cruzi antibodies at a 1:40 dilution with an indirect fluorescent antibody test (ifat) and brazil strain t. cruzi amastigotes and trypomastigotes as antigen. a positiv ...200515986630
trematodes in snails near raccoon latrines suggest a final host role for this mammal in california salt marshes.of the 18 trematode species that use the horn snail, cerithidea californica, as a first intermediate host, 6 have the potential to use raccoons as a final host. the presence of raccoon latrines in carpinteria salt marsh, california, allowed us to investigate associations between raccoons and trematodes in snails. two trematode species, probolocoryphe uca and stictodora hancocki, occurred at higher prevalences in snails near raccoon latrines than in snails away from latrines, suggesting that racc ...200515986632
[two genotypes of canine coronavirus simultaneously detected in the fecal samples of healthy foxes and raccoon dogs].61 fecal samples from healthy foxes and 24 from healthy raccoon dogs were examined by rt-nested pcr assays for the presence and genotypic identification of canine coronaviruses (ccvs). 77.0% fox samples were recognized as ccv positive, 43 of which belonged to type ii and 29 to type i, as well as both genotypes were simultaneously detected in 25 samples. out of the total 24 fecal samples from raccoon dogs, 22 were ccv positive for type ii and 16 for type i. m gene fragments of 8 samples were sequ ...200515989282
microvasculature of the retina, ciliary processes and choroid in the north american raccoon (procyon lotor) eye: a scanning electron microscopic study of corrosion casts.we have studied the vasculature of the retina, ciliary processes and choroid in the north american raccoon (procyon lotor), a nocturnal mammal, using light and scanning electron microscopic examination of corrosion casts. we carried out an identical study in the crab-eating macaque (macaca fascicularis), which forages only during the daytime, in order to compare the ocular vasculature with that of nocturnal mammals. our observations in raccoons demonstrated a photoreceptor layer associated with ...200515997180
male pseudohermaphroditism in a raccoon dog (nyctereutes procynoides).a wild raccoon dog (nyctereutes procynoides) which died due to a traffic accident on 18 october 2001, and was determined to be 4.5 years old, was examined. visual appearance of the external genitalia in this animal showed to be female with a large penis-like clitoris protruding from the vulvar juncture. visual examination of the internal genitalia revealed that the animal possessed both testes and uterus. histological appearance of the removed gonads showed only sertoli cells but no spermatogene ...200515997188
differentiating dracunculus medinensis from d. insignis, by the sequence analysis of the 18s rrna gene.this study, undertaken as a component of the global dracunculiasis eradication program (dep), was designed to provide molecular tools to distinguish dracunculus medinensis, the nematode causing human dracunculiasis, from other tissue-dwelling nematodes, including other dracunculus species that infect humans and other animals. dna was extracted from d. medinensis and from a closely related species that infects north american carnivores, d. insignis, so that the genes coding for the small-subunit ...200516004710
epidemiological characteristics of rabies in south korea from 1993 to 2001.in the nine years from 1993 to 2001, 210 cases of rabies were recorded in domestic animals in south korea; 115 cattle, 94 dogs and one farmed deer were affected. the annual incidence of rabies cases increased to a peak of 64 in 1998, and then decreased to about 30 cases per year. the cases were confined to the northern part of kyounggi and kangwon provinces. one hundred and forty-six cases (69.5 per cent) occurred in kyounggi and 64 cases (30.5 per cent) in kangwon province, and about 82 per cen ...200516006642
detection of ehrlichia spp. in raccoons (procyon lotor) from georgia.raccoons (procyonis lotor) and opossums (didelphis virginianus) acquired from six contiguous counties in the piedmont physiographic region of georgia were investigated for their potential role in the epidemiology of ehrlichial and anaplasmal species. serum was tested by indirect fluorescent antibody (ifa) assay for the presence of antibodies reactive to ehrlichia chaffeensis, e. canis, and anaplasma phagocytophilum (hga agent). nested polymerase chain reaction (pcr) assay was used to test whole ...200516011433
molecular epidemiology of rabies virus isolates from south korea.a molecular epidemiological study was performed on 13 korean virus isolates, which were collected from wild and domestic animals diagnosed as rabid between 1998 and 2004. seven samples were from domestic animals such as dogs and cattle infected by rabid raccoon dogs (nyctereutes procyonoides koreensis), and the rest of the six samples were from raccoon dogs in the wild. the study was carried out based on the comparison of nucleotide and amino acid sequences of nucleoprotein (n) and glycoprotein ...200516051390
incongruent restoration of inhibitory transmission and general metabolic activity during reorganization of somatosensory cortex.activity markers cytochrome oxidase (co) and glutamic acid decarboxylase (gad) were analyzed in the primary somatosensory cortex of raccoons that underwent digit amputation. subjects recovered for 2, 15, and 23 weeks following amputation of the fourth forepaw digit. histochemistry was used to assess relative activity levels of both enzymes. we found a pronounced decrease in the numbers of co intense patches in the cortical gyrus that had lost its original sensory input from the fourth digit. thi ...200516051546
ticks (acari: ixodida) on wild carnivores in brazil.the present study reports field data of ticks infesting wild carnivores captured from july 1998 to september 2004 in brazil. additional data were obtained from one tick collection and from previous published data of ticks on carnivores in brazil. during field work, a total of 3437 ticks were collected from 89 cerdocyon thous (crab-eating fox), 58 chrysocyon brachyurus (maned wolf), 30 puma concolor (puma), 26 panthera onca (jaguar), 12 procyon cancrivorus (crab-eating raccoon), 4 speothos venati ...200516082932
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