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prospective bacteriologic study of women undergoing hysterectomy.a prospective bacteriologic study on 67 women undergoing either vaginal or abdominal hysterectomy was done to elucidate causes of debrile morbidity. forty-one percent of the vaginal and 35% of the abdominal hysterectomy patients met the criteria for febrile morbidity postoperatively. preoperative and 24-hour postoperative urine samples were obtained by transvaginal bladder tap, and the freshly cut edge of the vaginal cuff was routinely swabbed following removal of the uterus. in addition, the su ...19751089225
evidence that cache valley virus induces congenital malformations in sheep.an outbreak of congenital abnormalities occurred in sheep at san angelo, texas, between december 1986 and february 1987. of 360 lambs born, 19.2% had arthrogryposis or other musculo-skeletal problems and hydranencephaly (agh), and the total neonatal loss was 25.6%. in 1987, all ewes that were tested with agh lambs had antibody to cache valley virus (cvv), whereas 62% of the ewes with normal lambs had cvv-specific antibody. pre-colostral serum samples from agh lambs had neutralizing antibody to c ...19902107620
["little bells" in agricultural domestic animals]. 19902209458
ovine arthrogryposis and central nervous system malformations associated with in utero cache valley virus infection: spontaneous disease.gross appearance and histologic lesions seen in 15 newborn lambs in an outbreak of congenital arthrogryposis with hydrocephalus or hydranencephaly (cah) in texas are described. severe arthrogryposis with skeletal muscle hypoplasia was seen in limbs of affected lambs. spinal column deformities were also present. multiple central nervous system (cns) malformations were present in cah lambs including micrencephaly, cerebellar hypoplasia, micromelia, hydrocephalus, hydranencephaly, and porencephaly. ...19892492399
sarcocystis arieticanis and other sarcocystis species in sheep in the united states.histological sections of tongues, esophagi, and diaphragms from 512 adult ewes from the northwest united states and texas were examined for sarcocystis spp. sarcocysts were found in sections of 82.1% of 504 tongues, 44.4% of 478 esophagi, and 51.7% of 89 diaphragms. sarcocystis tenella was the predominant species and was found in 430 (84.0%) sheep; s. arieticanis was found in 18 (3.5%) sheep. the mean number of s. tenella sarcocysts in tissue sections was approximately 10 times higher than that ...19883142990
vector competence of a houston, texas strain of aedes albopictus for rift valley fever virus. 19883193106
complement-fixation and hemagglutination antigens from a chlamydial (ornithosis) agent grown in cell cultures.methods are described for the preparation of complement-fixation (cf) and hemagglutination (ha) antigens from the texas turkey ornithosis agent grown in mccoy cell culture monolayers. the particulate antigens prepared for this study were satisfactory for testing mammalian sera by direct cf tests and avian sera by indirect cf or modified direct cf tests. comparison of titers were made on human, bovine and ovine sera using direct cf tests employing antigen prepared for this study, 6 bc yolk sac an ...19704248445
efficacy of haloxon and thiabendazole against gastrointestinal nematodes in sheep and goats in the edwards plateau area of texas. 19734748722
effects of origin and environment on reproductive phenomena in rambouillet ewes. i. breeding season and ovulation. 19744836828
effects of origin and environment on reproductive phenomena in rambouillet ewes. ii. lamb production. 19744836829
an epizootic of brucella melitensis infection in texas. 19704922193
elaeophorosis in barbary sheep and mule deer from the texas panhandle.adult elaeophora schneideri were recovered from the common carotid artery and its branches in 14 of 14 mule deer, odocoileus hemionus, and 3 of 9 barbary sheep or aoudads, ammotragus lervia, from palo duro canyon in the texas panhandle. gross cutaneous lesions attributable to elaeophorosis in the barbary sheep varied from small circumscribed scars up to 10 cm in diameter usually on the poll or orbital region to extensive proliferative irregular encrustations on the frontal, temporal and orbital ...19816454793
occurrence of mycoplasma sp (2d) in texas sheep flocks. 19836869995
ocular myiasis in a texas sheep shearer. 19807434244
longistrongylus curvispiculum (nematoda: trichostrongyloidea) in free-ranging exotic antelope in texas.longistrongylus curvispiculum was recovered from free ranging sable (hippotragus niger), addax (addax nasomaculatus) and biesa oryx (oryx beisa) on two ranches in central texas (usa). these nematodes represented a small portion of the total abomasal worm burden dominated by haemonchus contortus. female l. curvispiculum easily could be confused with other ostertaginae, but the spicules of the males were diagnostic.19938355363
indigenous human cutaneous anthrax in texas.in december 1988 an indigenous case of cutaneous anthrax was identified in texas. the patient, a 63-year-old male hispanic from southwest texas, was a sheep shearer and had a recent history of dissecting sheep that had died suddenly. he experienced an illness characterized by left arm pain and edema. a necrotic lesion developed on his left forearm, with cellulitis and lymphadenopathy. after treatment with oral and intravenous penicillins, the patient fully recovered. western blot testing reveale ...19938420007
serotyping of chlamydia psittaci isolates from ratites. 19989576350
serological studies on sympatric barbary sheep and mule deer from palo duro canyon, texas.sera were collected from 12 barbary sheet (ammotragus lervia) and 11 mule deer (odocoileus hemionus) occupying sympatric ranges in palo duro canyon, texas. these were tested for leptospirosis, brucellosis, bovine virus diarrhea, anaplasmosis, vesicular stomatitis, bluetongue (bt), epizootic hemorrhagic disease (ehd), infectious bovine rhinotracheitis (ibr), and coccidioidomycosis. serologic reactors were found to ibr in 3 barbery sheep, bt in 6 barbary sheep and 6 mule deer and ehd in 3 barbary ...1979228088
rabies surveillance in the united states during 1998.during 1998, 49 states, the district of columbia, and puerto rico reported 7,961 cases of rabies in nonhuman animals and 1 case in a human being to the centers for disease control and prevention, a decrease of 6.5% from 8,509 cases in nonhuman animals and 4 cases in human beings reported in 1997. more than 92% (7,358 cases) were in wild animals, whereas > 7.5% (603 cases) were in domestic species (compared with 93% in wild animals and 7% in domestic species in 1997). decreases were evident in al ...199910613210
teaching international animal agriculture.students who major in animal science at u.s. institutions are generally exposed to a curriculum that emphasizes commercial, large-scale production of the few traditional food animals: cattle, poultry, sheep, and swine. globally, most farmers live in lesser-developed countries under limited-resource conditions of land, feed supplies, equipment, and capital. the promotion of commercial animal production enterprises may not be appropriate for such farms because it can subject farmers to considerabl ...199910568483
rabies surveillance in the united states during 1999.during 1999, 49 states, the district of columbia, and puerto rico reported 7,067 cases of rabies in nonhuman animals to the centers for disease control and prevention, a decrease of 11.2% from 7,961 cases in nonhuman animals and 1 case in a human being reported in 1998. more than 91% (6,466 cases) were in wild animals, whereas 8.5% (601 cases) were in domestic species (compared with 92.4% in wild animals and 7.6% in domestic species in 1998). no cases of rabies were reported in human beings in 1 ...200011132881
a molecular analysis of dietary diversity for three archaic native americans.dna was extracted from three fecal samples, more than 2,000 years old, from hinds cave, texas. amplification of human mtdna sequences showed their affiliation with contemporary native americans, while sequences from pronghorn antelope, bighorn sheep, and cottontail rabbit allowed these animals to be identified as part of the diet of these individuals. furthermore, amplification of chloroplast dna sequences identified eight different plants as dietary elements. these archaic humans consumed 2-4 d ...200111296282
rabies surveillance in the united states during 2000.during 2000, 49 states, the district of columbia, and puerto rico reported 7,364 cases of rabies in nonhuman animals and 5 cases in human beings to the centers for disease control and prevention, an increase of 4.3% from 7,067 cases in nonhuman animals reported in 1999. ninety-three percent (6,855 cases) were in wild animals, whereas 6.9% (509 cases) were in domestic species (compared wth 91.5% in wild animals and 8.5% in domestic species in 1999). compared with cases reported in 1999, the numbe ...200111767918
rabies surveillance in the united states during 2001.during 2001, 49 states and puerto rico reported 7,437 cases of rabies in nonhuman animals and 1 case in a human being to the centers for disease control and prevention, an increase of < 1% from 7,364 cases in nonhuman animals and 5 human cases reported in 2000. more than 93% (6,939 cases) were in wild animals, whereas 6.7% (497 cases) were in domestic species (compared with 93.0% in wild animals and 6.9% in domestic species in 2000). the number of cases reported in 2001 increased among bats, cat ...200212494966
genetic evidence suggests that psoroptes isolates of different phenotypes, hosts and geographic origins are conspecific.the second internal transcribed spacer of the rrna gene was characterised in 15 psoroptes isolates collected from the ears or bodies of rabbits, goats, sheep and cattle originating from four continents. morphologically, the isolates were differentiated as psoroptes cuniculi, psoroptes ovis and psoroptes cervinus. genotypically, the isolates were highly homogeneous, except for the existence of different rdna classes. in view of previous phenotypic data, a possible conspecificity of these species ...19989846608
bluetongue virus and white-tailed deer in an enzootic area of texas. 19744363569
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
patterns of animal poisonings reported to the texas poison center network: 1998-2002.a portion of calls handled by poison centers involve poisonings of animals; however, information on such calls is limited. this study used data from poison centers in texas collected during 1998-2002 to document the epidemiology of animal poisoning calls. there were a total of 24,467 animal poisoning calls, representing 2.0% of all calls. dogs were affected in 87% of the calls and cats in 11%. the exposures were unintentional in 99% of the cases, occurred via ingestion in 95% and involved dermal ...200415080216
climatological correlates of screwworm (cochliomyia hominivorax) abundance in texas, u.s.a.the causes of screwworm (cochliomyia hominivorax) outbreaks in north america are not well understood, but the literature suggests that climate was historically important. screwworm case incidence in each of seven climatological divisions of texas was examined for the years 1962-83, the period when sterile-male releases were made. weak but statistically significant correlations were found between winter and summer cases and mean winter and summer rainfall and temperature when the independent vari ...19872979523
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
rabies surveillance in the united states during 2004.during 2004, 49 states and puerto rico reported 6,836 cases of rabies in nonhuman animals and 8 cases in human beings to the cdc, representing a 4.6% decrease from the 7,170 cases in nonhuman animals and 3 cases in human beings reported in 2003. approximately 92% of the cases were in wildlife, and 8% were in domestic animals (compared with 91% and 9%, respectively, in 2003). relative contributions by the major animal groups were as follows: 2,564 raccoons (37.5%), 1,856 skunks (27.1%), 1,361 bat ...200516379626
rabies surveillance in the united states during 2005.during 2005, 49 states and puerto rico reported 6,417 cases of rabies in nonhuman animals and 1 case in a human being to the cdc, representing a 6.2% decrease from the 6,836 cases in nonhuman animals and 8 cases in human beings reported in 2004. approximately 92% of the cases were in wildlife, and 8% were in domestic animals. relative contributions by the major animal groups were as follows: 2,534 raccoons (39.5%), 1,478 skunks (23%), 1,408 bats (21.9%), 376 foxes (5.9%), 269 cats (4.2%), 93 cat ...200617173527
rabies surveillance in the united states during 2006.during 2006, 49 states and puerto rico reported 6,940 cases of rabies in animals and 3 cases in humans to the cdc, representing an 8.2% increase from the 6,417 cases in animals and 1 case in a human reported in 2005. approximately 92% of the cases were in wildlife, and 8% were in domestic animals. relative contributions by the major animal groups were as follows: 2,615 raccoons (37.7%), 1,692 bats (24.4%), 1,494 skunks (21.5%), 427 foxes (6.2%), 318 cats (4.6%), 82 cattle (1.2%), and 79 dogs (1. ...200717696853
rabies surveillance in the united states during 2007.summary: during 2007, 49 states and puerto rico reported 7,258 cases of rabies in animals and 1 case in a human to the cdc, representing a 4.6% increase from the 6,940 cases in animals and 3 cases in humans reported in 2006. approximately 93% of the cases were in wildlife, and 7% were in domestic animals. relative contributions by the major animal groups were as follows: 2,659 raccoons (36.6%), 1,973 bats (27.2%), 1,478 skunks (20.4%), 489 foxes (6.7%), 274 cats (3.8%), 93 dogs (1.3%), and 57 ca ...200818795848
identification and characterization of bahia grande, reed ranch and muir springs viruses, related members of the family rhabdoviridae with widespread distribution in the united states.sixteen virus isolates with similar biological characteristics were obtained from salt-marsh mosquitoes collected in south texas in 1974. when compared antigenically, these and 13 other isolates from mosquitoes collected between 1972 and 1979 in west texas, new mexico, louisiana, colorado and north dakota were shown to be related but not identical. three distinct serotypes were determined: bahia grande (prototype strain tb4-1054), reed ranch (tb4-222) and muir springs (76v-23524). when examined ...19862872270
laboratory investigation of a naturally occurring outbreak of arthrogryposis-hydranencephaly in texas sheep.an epizootic of abortions, weak lambs, stillbirths, and congenital arthrogryposis-hydranencephaly occurred in a sheep flock in west texas. the outbreak began during the first week of january 1987 and continued through the third week of february 1987. lambs born after february 1987 were not affected. a high incidence of antibodies to cache valley virus (texas 7856 isolate) was demonstrated in the ewes' serum and in precolostral serum from affected lambs. no virus was isolated from tissues and bod ...19892488650
human coinfection with bartonella henselae and two hemotropic mycoplasma variants resembling mycoplasma ovis.two variants of an organism resembling the ovine hemoplasma, mycoplasma ovis, were detected by pcr in blood samples from a veterinarian in texas. coinfection with similar variants has been described in sheep. this represents the first report of human infection with this organism. the veterinarian was coinfected with bartonella henselae.201020702675
evaluation of a postexposure rabies prophylaxis protocol for domestic animals in texas: 2000-2009.to determine whether postexposure rabies prophylaxis (pep) in domestic animals, as mandated in texas, has continued to be effective and to evaluate preexposure or postexposure vaccination failures from 2000 through 2009.201021155679
effects of supplemental feed with or without ionophores on lambs and angora kid goats on rangeland.effects of supplemental feed and of ionophore concentration in supplemental feed on gastrointestinal rate parameters, forage intake and weight gain were measured in individually supplemented grazing lambs and angora kid goats. the 12 dietary treatments included negative control (nc; grazed forage only), positive control (pc; grazing plus 13.6 g supplement dm/kg.75), and pc plus monensin or lasalocid, each at 33, 66, 99, 132 or 165 mg/kg in the supplement. gastrointestinal fill, retention time, t ...19902286541
isolation and identification of a variant of bluetongue virus serotype 11 from a ram in a bluetongue outbreak in western texas.a field strain of bluetongue virus was isolated from a blood sample of a ram during an outbreak of bluetongue in november 1985 in western texas. in this bluetongue outbreak at least 25 of the 2,000 sheep were infected. isolation was made by intravenous inoculation of 11-day-old embryonated chicken eggs. the serotype was identified as serotype 11 by serum neutralization tests. the genomic pattern on sodium dodecyl sulfate (sds)-polyacrylamide gel electrophoresis (page) of the new isolate is simil ...19911653269
epizootiology of bluetongue: the situation in the united states of america.bluetongue was first reported in the united states in 1948 in sheep in texas. the virus has now been isolated from sheep in 19 states. when the disease first occurs in a flock, the morbidity may reach 50 to 75% and mortality 20 to 50%. in subsequent years, the morbidity may be only 1 to 2% with very few deaths. difference in breed susceptibility has not been observed. natural bluetongue infection has not been observed in angora or dairy goats. bluetongue virus was first isolated from cattle, in ...1975169793
hepatic fatty cirrhosis in ruminants from western texas. 19938420900
managing replacement stock within the environment of the south--plant, soil, and animal interactions: a review.the south extends from the atlantic coast and the gulf of mexico north through virginia and kentucky and west to the 100th meridian, which extends through texas and oklahoma. the soils, environment, and range of adapted forage species offer many and varied opportunities for designing forage-livestock systems for rearing replacement stock. anti-quality factors of concern when using forages for replacement stock include the presence of acremonium coenophialum (morgan-jones and gams) in tall fescue ...19938270541
isolations of cache valley virus in texas, 1981.two strains of the same virus (isolates ar 168 and 7856), were isolated in 1981 from an apparently healthy cow and a sick sheep in tx, u.s.a. these isolates were shown to be members of the bunyamwera serogroup (family bunyaviridae, genus bunyavirus) by complement-fixation tests. serum dilution-plaque reduction neutralization test results indicated that the isolates are closely related to cache valley virus. the virus isolates were characterized by sensitivity to lipid solvent, size (50-100 nm by ...19873101276
experimentally induced bovine spongiform encephalopathy in cattle in mission, tex, and the control of scrapie. 19902347766
analysis of the genomes of bluetongue viruses recovered from different states of the united states and at different times.the ribonucleic acid (rna) genomes of the original representatives of the four serotypes of bluetongue virus (btv) isolated from the united states (btv-10, btv-11, btv-13 and btv-17) have been analyzed by polyacrylamide gel electrophoresis. ten double-stranded rna species were resolved for each virus and categorized into the size classes of large (l segments #1-3), medium (m segments #4-6) and small (s segments #7-10). minor electrophoretic mobility differences were observed for the m5 and s10 r ...19826278927
a serologic survey of mycoplasma putrefaciens infection in goats.the prevalence of mycoplasma putrefaciens infection in goat populations in mendocino and sonoma counties of northern california was studied, using the plate and tube agglutination tests. on a county basis, mendocino had a higher antibody prevalence (13%) than sonoma (10%). the overall antibody prevalence among the 377 goat serum samples tested was 11%. there was no statistical evidence to show any significant difference in prevalence on the basis of herd size. of the common goat breeds in califo ...19817325445
cache valley virus infection in texas sheep flocks.cache valley virus (cvv), an arbovirus indigenous to the united states, has been implicated as an important teratogenic agent in sheep. the prevalence and distribution of texas sheep with cvv-specific antibody were investigated. in 1981, 19.1% of 366 sheep located in 22 counties of texas had antibodies specific for cvv. of 50 flocks examined in the major sheep-producing counties in texas, 34 had sheep with antibodies that reacted with cvv, including all sheep tested in 6 flocks that were seropos ...19911917638
radioiodine(131i) in animal thyroids during nuclear tests in both hemispheres. 19751201953
isolation of t-strain mycoplasma from sheep and goats in texas.t-strain mycoplasmas were isolated from 3 of 42 lambs, 18 of 34 aged ewes, and 3 of 10 spanish goats. this is the first report of isolation of t-strain mycoplasma from sheep and of the occurrence of t-strain mycoplasma in goats in the united states.19751115431
ectoparasites of sympatric barbary sheep and mule deer in the texas panhandle, usa. 1979541816
serologic evidence of venezuelan equine encephalitis in some wild and domestic populations of southern texas.more than 2,500 sera from approximately 30 wild and domestic species in southern texas were tested for neutralizing antibodies to venezuelan equine encephalitis (vee). virus isolations were also attempted from blood and tissue samples of many of the wild specimens. vee neutralizing substances were present in a variety of species collected prior to the 1971 epizootic, suggesting that vee was present and perhaps enzootic in this area before the recent epizootic. serologic results of this study sug ...1975238050
localization by fish of the 31 texas nomenclature type i markers to both q- and r-banded bovine chromosomes.a series of 31 marker genes (one per chromosome) were localized precisely to both q- and r-banded bovine chromosomes by fluorescence in situ hybridization (fish), as a contribution to the revised chromosome nomenclature of the three major domestic bovidae (cattle, sheep and goat). all marker genes except one (ldha) are taken from the texas nomenclature of the cattle karyotype published in 1996. homologous probes for each marker gene were obtained by screening a bovine bac library by pcr with spe ...200011124540
case report: ophthalmomyiasis externa in dallas county, texas.ophthalmomyiasis externa is an uncommon condition in north america. if not recognized and managed accordingly, it can be complicated by the potentially fatal condition ophthalmomyiasis interna. ophthalmomyiasis externa is mainly caused by the sheep bot fly oestrus ovis; thus, it is more common in farming communities. we report a case of ophthalmomyiasis externa in a young woman from dallas county, texas, who had no known history of contact with farm animals.200312556147
severe persistent orf in young goats.orf (contagious ecthyma) is a viral disease of small and wild ruminants, humans, and less frequently other species. in sheep and goats, the disease is characterized by the formation of vesiculo-proliferative lesions in the skin of lips and nostril. here, a form of generalized orf in 16 goat kids from 2 different locations in west texas is described. the disease was characterized by multifocal, severe, proliferative dermatitis that persisted from about 2 months of age until the goat kids were eut ...200314535541
evaluation of australian merino and u.s. sheep breeds for growth and carcass traits.one hundred twenty 4-mo-old wether lambs born to targhee ewes and sired by six rams each from merino (finewool, fm and strongwool, sm), rambouillet (dubois, dr and texas, tr), and targhee (t) breeds were randomly assigned to predetermined slaughter weight groups of 43, 48, 52, and 57 kg and evaluated for growth and carcass traits. overall mean adg and feed conversion rate (fc, kilograms of feed/kilogram of gain) were .28 and 6.4 kg, respectively; t grew the fastest (.31 kg) and fm grew the slowe ...19938440655
efficacy of albendazole and levamisole in sheep against thysanosoma actinioides and haemonchus contortus from the edwards plateau, texas.lambs naturally infected with thysanosoma actinioides and naturally and experimentally infected with haemonchus contortus were used in a controlled experiment to determine the anthelmintic activity of albendazole as compared with levamisole. the lambs were given 10,000 h contortus larvae 25 to 35 days before treatment, were slaughtered 7 to 9 days after treatment, and were housed on concrete from the time of treatment until slaughter. in lambs given doses of 7.5 mg or 3.8 mg of albendazole/kg or ...19807369618
production of fine-wool ewes on yearlong rangeland in west texas. ii. effects of supplemental feed and breeding frequency on reproductive rate.reproductive rate was compared in once-a-year and accelerated lambing ewes given various winter supplemented feed treatments during a 4-yr study. the study involved 165 commercial rambouillet ewes. the accelerated lambing ewes had a lower attrition rate (p = .20) and final weight (p less than .05) and produced more lambs (p less than .01), lighter weight lambs at birth (p less than .05) and weaning (p less than .01), a lower frequency of twins (p less than .05) and an equal total weight of weane ...19836874609
production of fine-wool ewes on yearlong rangeland in west texas. i. effects of season, stage of production and supplemental feed on intake.effects of season, reproductive stage and supplemental feed on fecal output, forage intake and digestible organic matter intake (domi) were determined in fine-wool ewes on rangeland. fecal output was highest during winter and was not affected by supplemental feed level. forage intake was similar across seasons, but domi was higher during spring because of the higher digestible organic matter (dom) concentration in the diet. lactating ewes consumed 35 to 40% more forage and dom compared with nonl ...19836874608
an examination of jury verdicts for evidence of a similarity-leniency effect, an out-group punitiveness effect or a black sheep effect.archival data from cases adjudicated by jury in el paso and bexar county, texas, were used to test whether a similarity-leniency effect, an out-group punitiveness effect, or a black sheep effect (bse; j. m. marques, v y. yzerbyt, & j. p. leyens, 1988) influenced jury decisions. defendant ethnicity, jury ethnic composition, and strength of evidence against the defendant were coded for 418 closed noncapital, felony cases to test their impact on trial verdicts and sentence lengths. results indicate ...200415638212
bluetongue in the united states.the virus of bluetongue (bt) was 1st isolated and identified in the us in 1952 from sheep in california. a disease in sheep in texas (soremuzzle) was observed in 1947, reported in 1952 and similarities to bt were discussed. it is possible bt existed in texas for several years prior to that time. there are 23 immunologic serotypes of bt, and 5 are known to occur in the us. these are types 10, 11, 13, 17 and 2, the latter having been recognized only in 1983 in cattle in florida. in the us, bt was ...19852989874
field collection and genetic classification of tick-borne rickettsiae and rickettsiae-like pathogens from south texas: coxiella burnetii isolated from field-collected amblyomma cajennense.we are reporting the first known isolation of the q-fever agent coxiella burnetii from field-collected cayenne ticks amblyomma cajennense in north america. q-fever affects a number of domestic ungulates where it can lead to abortion in sheep and goats. there is far less known about the disease's effects on wild species, primarily because of the tendency of the disease to self resolve and to provide long-term immunity to subsequent infections. the first recovery of c. burnetii in north america wa ...200819120212
simulation of foot-and-mouth disease spread within an integrated livestock system in texas, usa.we used a simulation study to assess the impact of an incursion of foot-and-mouth disease (fmd) virus on the livestock industries in an 8-county area of the panhandle region of texas, usa. the study was conducted in a high-density livestock area, with an estimated number of cattle on-feed of approximately 1.8 million. we modified an existing stochastic, spatial simulation model to simulate 64 scenarios for planning and decision-making. our scenarios simulated four different herd types for the in ...200919178967
isolation of mycoplasma and ureaplasma from sheep and goats in west texas (1970-78). 1978287105
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