| eimerians in harvest mice, reithrodontomys spp., from mexico, california and new mexico, and phenotypic plasticity in oocysts of eimeria arizonensis. | between may 1979 and august 1991, 48.7% (57/117) of the harvest mice (reithrodontomys spp.) examined from 10 localities in mexico, california and new mexico had coccidian oocysts in their feces. a total of 46.7% (49/105) of the reithrodontomys megalotis examined were positive for coccidian oocysts; this included samples from five states in mexico (47.1%, 8/17), three counties in california (66.7%, 4/6) and two counties in new mexico (45.1%, 37/82); 66.7% (8/12) of the reithrodontomys montanus fr ... | 1992 | 1522549 |
| prevalence of rabies specific antibodies in the mexican free-tailed bat (tadarida brasiliensis mexicana) at lava cave, new mexico. | adult female and juvenile mexican free-tailed bats (tadarida brasiliensis mexicana) were collected bimonthly at lava cave, new mexico from may through september. the purpose of this study was to examine the prevalence of active rabies infection as well as to determine individual immune status in these hosts. all bats were bled and examined for rabies antibody (total antibody versus igm) utilizing a modified serum neutralization test. the brains were removed and examined by the fluorescent rabies ... | 1989 | 2681843 |
| tissue distribution of lymphocytes in rheumatic heart valves as defined by monoclonal anti-t cell antibodies. | fresh cardiac valvular tissues and atrial appendages removed from 106 indian patients with rheumatic heart disease at the time of corrective cardiac surgery were examined to determine the characteristics of valvular interstitial lymphocytic infiltrates using conventional histologic staining along with indirect immunofluorescent techniques. precise identification of the phenotypic profiles of inflammatory mononuclear cells was attempted using anti-igg, anti-ia, and monoclonal mouse hybridoma reag ... | 1983 | 6336893 |
| coccidian parasites (apicomplexa) from snakes in the southcentral and southwestern united states: new host and geographic records. | four hundred thirty-five leptotyphlopid, colubrid, elapid, and viperid snakes were collected from various localities in arkansas, new mexico, oklahoma, and texas, and their feces were examined for coccidian parasites. of these, 131 (30%) were passing oocysts or sporocysts of at least 1 coccidian; 88 (67%) of the infected snakes had only 1 species of coccidian when they were examined. aquatic and semiaquatic snakes accounted for 48% of the infections, whereas strictly terrestrial snakes comprised ... | 1995 | 7876980 |
| a new species of vexillata (nemata: ornithostrongylidae) from the coarse-haired pocket mouse chaetodipus hispidus in new mexico. | individuals of a new species of trichostrongyloid nematode of the genus vexillata were collected from the intestines of the coarse-haired pocket mouse chaetodipus hispidus from eastern new mexico. this new species possesses general features of the genus vexillata but may be recognized as distinct from all other species by unique features of the dorsal ray of the caudal bursa and the synlophe. | 1994 | 8064527 |
| serologic and genetic identification of peromyscus maniculatus as the primary rodent reservoir for a new hantavirus in the southwestern united states. | an outbreak of hantavirus pulmonary syndrome (hps) in the southwestern united states was etiologically linked to a newly recognized hantavirus. knowledge that hantaviruses are maintained in rodent reservoirs stimulated a field and laboratory investigation of 1696 small mammals of 31 species. the most commonly captured rodent, the deer mouse (peromyscus maniculatus), had the highest antibody prevalence (30%) to four hantavirus antigens. antibody also was detected in 10 other species of rodent and ... | 1994 | 8195603 |
| prevalence of antibodies to arenaviruses in rodents from the southern and western united states: evidence for an arenavirus associated with the genus neotoma. | the objectives of this study were to extend our knowledge of the geographic distribution and rodent host range of arenaviruses in north america. sera from wild rodents collected from the southern and western united states were tested for antibody against tamiami, pichinde, junin, and lymphocytic choriomeningitis viruses, using an indirect fluorescent antibody test. antibody to at least one arenavirus was found in 220 (3.1%) of 7,106 rodents tested. the antibody-positive animals included mus musc ... | 1996 | 8686773 |
| parasites of mammals on the sevilleta national wildlife refuge, socorro, new mexico: cuterebra austeni and c. neomexicana (diptera:oestridae) from neotoma and peromyscus (rodentia:muridae), 1991-1994. | in total, 6,486 rodents representing 3 families (muridae, heteromyidae, and sciuridae) and 24 species were trapped may through august of 1991 through 1994. of these, only the white-throated woodrat. neotoma albigula hartley; piñon mouse, peromyscus truei shufeldt; and white-footed mouse, p. leucopus rafinesque, were infested with cuterebra clark larvae. of the 594 n. albigula that were captured 103 (17.3%) were infested with 139 cuterebra larvae with all infestations occurring in the throat regi ... | 1997 | 9151503 |
| genetic reassortment among viruses causing hantavirus pulmonary syndrome. | in order to determine the frequency and characteristics of reassortment among viruses causing hantavirus pulmonary syndrome (hps), mixed infections were initiated in tissue culture by using two closely related strains of sin nombre virus, cc107 (from eastern california) and nmr11 (from new mexico), which share the same species of rodent host in nature, the deer mouse (peromyscus maniculatus). potential reassortant virus plaques were screened by multiplex rt-pcr, using primers specific for indivi ... | 1998 | 9501041 |
| hantavirus pulmonary syndrome--colorado and new mexico, 1998. | hantavirus pulmonary syndrome (hps) is a severe cardiopulmonary illness resulting in death in approximately 45% of cases. the most frequently recognized etiologic agent of hps in north america, sin nombre virus (snv), is transmitted to humans from its primary rodent reservoir, peromyscus maniculatus (deer mouse), by direct contact with infected rodents, rodent droppings, or nests or through inhalation of aerosolized virus particles from mouse urine and feces. sporadic cases occur throughout the ... | 1998 | 9639364 |
| pcr detection of yersinia pestis in fleas: comparison with mouse inoculation. | the "gold standard" for identifying yersinia pestis-infected fleas has been inoculation of mice with pooled flea material. inoculated mice are monitored for 21 days, and those that die are further analyzed for y. pestis infection by fluorescent-antibody assay and/or culture. pcr may provide a more rapid and sensitive alternative for identifying y. pestis in fleas. to compare these assays, samples were prepared from 381 field-collected fleas. each flea was analyzed individually by both pcr and mo ... | 1999 | 10325359 |
| experimental evaluation of rodent exclusion methods to reduce hantavirus transmission to residents in a native american community in new mexico. | we conducted a pilot study to evaluate the efficacy of rodent proofing continuously occupied homes as a method for lowering the risk for hantavirus pulmonary syndrome (hps) among residents of a native american community in northwestern new mexico. rodent proofing of dwellings was paired with culturally appropriate health education. seventy homes were randomly assigned to treatment or control categories. treatment homes were rodent-proofed by sealing openings around foundations, doors, roofs, and ... | 2002 | 12653299 |
| different genes underlie adaptive melanism in different populations of rock pocket mice. | identifying the genes responsible for adaptation has been an elusive goal in evolutionary biology. rock pocket mice (chaetodipus intermedius) provide a useful system for studying the genetics of adaptation: most c. intermedius are light-coloured and live on light-coloured rocks, but in several different geographical regions, c. intermedius are melanic and live on dark-coloured basalt lava, presumably as an adaptation for crypsis. previous work demonstrated that mutations at the melanocortin-1 re ... | 2003 | 12694282 |
| local adaptation in the rock pocket mouse (chaetodipus intermedius): natural selection and phylogenetic history of populations. | elucidating the causes of population divergence is a central goal of evolutionary biology. rock pocket mice, chaeotdipus intermedius, are an ideal system in which to study intraspecific phenotypic divergence because of the extensive color variation observed within this species. here, we investigate whether phenotypic variation in color is correlated with local environmental conditions or with phylogenetic history. first, we quantified variation in pelage color (n=107 mice) and habitat color (n=5 ... | 2005 | 15523507 |
| hantavirus pulmonary syndrome--five states, 2006. | hantavirus pulmonary syndrome (hps) is a rodentborne viral disease characterized by severe pulmonary illness and a case-fatality ratio of 30%-40%. sin nombre virus causes the majority of hps cases in the united states, and the deer mouse (peromyscus maniculatus) is its predominant reservoir. this report describes an increase in human cases of hps reported during january-march 2006 from arizona, new mexico, north dakota, texas, and washington state. the findings emphasize the need for renewed att ... | 2006 | 16760891 |
| deer mouse movements in peridomestic and sylvan settings in relation to sin nombre virus antibody prevalence. | prevalence of antibody to sin nombre virus (snv) has been found to be nearly twice as high in deer mice (peromyscus maniculatus) in peridomestic settings as in sylvan settings in two studies in montana and one in new mexico. we investigated whether this difference may be related to a difference in deer mouse movements in the two settings. we used radiotelemetry to determine home range size and length of movement for 22 sylvan (1991-1992) and 40 peridomestic deer mice (1995-1999). we also determi ... | 2006 | 17255448 |
| demographic factors associated with prevalence of antibody to sin nombre virus in deer mice in the western united states. | we used long-term data collected for up to 10 yr (1994-2004) at 23 trapping arrays (i.e., webs and grids) in arizona, colorado, montana, and new mexico to examine demographic factors known or suspected to be associated with risk of infection with sin nombre virus (snv) in its natural host, the deer mouse (peromyscus maniculatus). gender, age (mass), wounds or scars, season, and local relative population densities were statistically associated with the period prevalence of antibody (used as a mar ... | 2007 | 17347388 |
| temporal and geographic evidence for evolution of sin nombre virus using molecular analyses of viral rna from colorado, new mexico and montana. | all viruses in the family bunyaviridae possess a tripartite genome, consisting of a small, a medium, and a large rna segment. bunyaviruses therefore possess considerable evolutionary potential, attributable to both intramolecular changes and to genome segment reassortment. hantaviruses (family bunyaviridae, genus hantavirus) are known to cause human hemorrhagic fever with renal syndrome or hantavirus pulmonary syndrome. the primary reservoir host of sin nombre virus is the deer mouse (peromyscus ... | 2009 | 19602267 |
| convergence in pigmentation at multiple levels: mutations, genes and function. | convergence--the independent evolution of the same trait by two or more taxa--has long been of interest to evolutionary biologists, but only recently has the molecular basis of phenotypic convergence been identified. here, we highlight studies of rapid evolution of cryptic coloration in vertebrates to demonstrate that phenotypic convergence can occur at multiple levels: mutations, genes and gene function. we first show that different genes can be responsible for convergent phenotypes even among ... | 2010 | 20643733 |
| Fatal Disseminated Cryptococcus gattii Infection in New Mexico. | We report a case of fatal disseminated infection with Cryptococcus gattii in a patient from New Mexico. The patient had no history of recent travel to known C. gattii-endemic areas. Multilocus sequence typing revealed that the isolate belonged to the major molecular type VGIII. Virulence studies in a mouse pulmonary model of infection demonstrated that the strain was less virulent than other C. gattii strains. This represents the first documented case of C. gattii likely acquired in New Mexico. | 2011 | 22194869 |