| oral treatment of transmissible gastroenteritis with natural human interferon alpha: a field study. | during a natural outbreak of transmissible gastroenteritis (tge), groups of piglets were treated orally for 4 consecutive days with placebo or 1.0, 10.0 or 20.0 international units (iu) natural human interferon alpha (nhuifn alpha). piglets that were 1-12 days of age and given 1.0, 10.0 or 20.0 iu nhuifn alpha had significantly (p < 0.01) greater survival rates than placebo-treated piglets; survival rates were the greater for the highest level of nhuifn alpha treatment. in contrast, beneficial e ... | 1995 | 7676616 |
| trichinosis--texas. | | 1984 | 6433168 |
| surveillance of influenza in houston, texas, usa: gradual transition from a/victoria/75 (h3n2) to a/texas/77 (h3n2) predominance and antigenic characterization of "intermediate" strains. | influenza epidemics in houston, texas, usa, during the winters of 1975-76, 1976-77, and 1977-78 were attributed to a/victoria/3/75 (h3n2), b/hong kong/5/72, and a/texas/1/77 (h3n2)-like viruses, respectively. both a/victoria and a/texas viruses were detected towards the end of the 1976-77 epidemic and throughout the 1977-78 epidemic. to determine if there had been a gradual transition in the predominant strain, 267 viral isolates from the 1975-76 epidemic were tested for a/texas virus. eight spe ... | 1983 | 6190585 |
| 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 ... | 2000 | 11132881 |
| the occurrence of fascioloides magna and fasciola hepatica together in the livers of naturally infected cattle in south texas, and the incidence of the flukes in cattle, white-tailed deer, and feral hogs. | | 1972 | 5078583 |
| phage typing in diphtheria outbreaks in the southwestern united states, 1968-1971. | | 1972 | 4626545 |
| serum chemistry of the collared peccary (tayassu tajacu). | values of serum biochemistry were obtained for 33 adult (16 male and 17 female) and six juvenile (four male and two female) collared peccaries collected by trapping and drugging animals from southern texas during the period july through september 1982. only cholesterol and aspartate aminotransferase concentrations differed significantly with respect to sex. juvenile peccaries had significantly lower concentrations of total protein and globulins, but had higher concentrations of glucose, triglyce ... | 1984 | 6737608 |
| parasites of feral pig x european wild boar hybrids in southern texas. | | 1974 | 4279992 |
| 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 ... | 1999 | 10613210 |
| 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 ... | 2001 | 11767918 |
| virulence of venezuelan equine encephalomyelitis virus subtypes for various laboratory hosts. | mice, guinea pigs, and duck embryo cell cultures were inoculated with known subtypes of venezuelan equine encephalomyelitis (vee) virus and the attenuated (tc-83) strain of vee. with the exception of tc-83, all strains were highly pathogenic for suckling mice by either intracranial or intraperitoneal routes of inoculation used. virulence for older mice and guinea pigs provided a means to distinguish strains. in addition, virulence or lack of virulence for adult mice or guinea pigs provides a rap ... | 1974 | 4155263 |
| 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 ... | 2002 | 12494966 |
| prevalence of hemagglutination inhibition antibody to current strains of the h3n2 and h1n1 subtypes of influenza a virus in sera collected from the elderly in 1976. | sera were collected in 1976 from 182 individuals born between 1876-1935, who included patients in a large local nursing home in orange county, california, and patients and staff at the university of california, irvine medical center. sera were treated with receptor-destroying enzyme and assayed for hemagglutination inhibition (hi) antibody to recent strains of influenza a virus. the antigens tested were: a/victoria/3/76 and a/texas/1/77 for subtype h3n2; a/new jersey/8/76, a/x53 and a/swine/1976 ... | 1982 | 7072705 |
| nih plans probe on test of altered virus. | | 1986 | 3704629 |
| prevalence of campylobacter spp isolated from the intestinal tract of pigs raised in an integrated swine production system. | to enumerate the prevalence of campylobacter isolates in the intestinal tract of market-weight swine raised in an integrated swine operation in texas. | 1999 | 14567422 |
| specificity and sensitivity of radioimmunoassay for hepatitis b antigen. | sera from a survey of 6,026 people were tested for hepatitis b surface antigen by using radioimmunoassay and counterelectrophoresis. forty-eight sera (0.79%) were positive by counterelectrophoresis and 152 sera (2.52%) were positive by radioimmunoassay, using the most liberal of the recommended criteria for positivity (i.e., counts 3 standard deviations above the mean). absorption tests performed on the 152 radioimmunoassay-positive sera showed that 10 (6.6%) were false-positive reactions to gui ... | 1974 | 4472833 |
| survey of selected diseases in wild swine in texas. | tissue, fecal, and serum specimens and swabs of nasal turbinates and tracheas were collected from 100 wild swine (sus scrofa) from 10 populations in texas and, along with 24 additional serum specimens, were evaluated for selected swine diseases. swine positive for pseudorabies were detected in 7 populations. brucella suis biovar 1 was isolated from 4 swine from 2 populations, but positive serologic results may indicate a more widespread distribution of the organism. all populations contained swi ... | 1986 | 3505919 |
| a fatal x-linked recessive reticuloendothelial syndrome with hyperglobulinemia. x-linked recessive reticuloendotheliosis. | | 1973 | 4199726 |
| ["little bells" in agricultural domestic animals]. | | 1990 | 2209458 |
| serologic survey for transmissible gastroenteritis virus neutralizing antibodies in selected feral and domestic swine sera in the southern united states. | serum samples collected from feral and domestic swine (sus scrofa) in florida and feral swine in georgia and texas were assayed by plaque reduction for their virus neutralizing (vn) antibodies against the porcine transmissible gastroenteritis virus (tge). none of 560 samples collected from feral swine contained vn antibodies for tge virus, but experimentally infected feral swine seroconverted. none of 665 samples from domestic swine contained tge-vn antibodies. these results indicate feral swine ... | 1990 | 2167395 |
| fascioloides magna (bassi, 1875) in feral swine from southern texas. | between 1971 and 1975, fascioloides magna was found in 46 of 67 (69%) feral swine (sus scrofa) in southern texas. flukes were recovered from swine in areas where f. magna commonly has been recovered from white-tailed deer and cattle. one to 12 flukes were recovered from each infected animal. their presence was indicated by black hematin pigment on the liver and various other internal organs. eggs were not detected in the gallbladder or feces of infected animals although mature flukes and eggs we ... | 1975 | 1195502 |
| laboratory studies of venezuelan equine encephalitis virus in equines, texas, 1971. | during the summer and fall of 1971, epizootic and epidemic venezuelan equine encephalitis was detected in texas. isolates of epizootic (ib) and vaccine (tc-83) strains were distinguished by virulence of the former for guinea pigs. vaccine virus was isolated from 1 to 14 days after vaccination and neutralization tests demonstrated the appearance of antibody about a week after vaccination. viremia titers of subtype ib in horses ranged from 2.2 to 8.3 log10 suckling mouse intracranial 50% lethal do ... | 1975 | 1176627 |
| observations on the involvement of wildlife in an epornitic of chlamydiosis in domestic turkeys. | in an investigation of potential wildlife reservoirs of chlamydia psittaci at the site of an acute, highly fatal epornitic of chlamydiosis in domestic turkeys in texas, various species of wild birds and rodents were captured and tested for chlamydial serum antibodies and chlamydiae in their tissues. thirteen (65%) of 20 blackbirds (agelaius sp), 4 (44%) of 9 killdeer (oxyechus vociferus), 3 (27%) of 11 sparrows (passer sp) and 1 of 4 mourning doves (zenaidura macroura) were seropositive, but chl ... | 1976 | 988009 |
| an outbreak of bacillus cereus food poisoning resulting from contaminated vegetable sprouts. | in an outbreak of gastrointestinal illness caused by consumption of home-grown raw vegetable sprouts contaminated by bacillus cereus, victims developed symptoms after an incubation period of 6-15 hours. four persons initially experienced nausea and vomiting, and this was followed in 3 cases by abdominal cramps and diarrhea. bacteriologic investigation indicated that b. cereus on unsprouted seeds proliferated during germination in a commercially sold seed sprouting kit and reached levels in exces ... | 1976 | 820192 |
| probable vomiting and wasting disease in texas pigs. | | 1976 | 185776 |
| 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 ... | 1999 | 10568483 |
| eperythrozoon in captive juvenile collared peccaries in texas. | | 1985 | 4078982 |
| 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 ... | 2003 | 14690203 |
| an epizootiologic study of anthrax in falls county, texas. | in june and july, 1974, an anthrax epizootic in falls county, texas, resulted in the death of 236 animals (228 cattle, 5 horses, 2 mules, and 1 pig) on 48 premises. death rates were highest for horses (18.2%) and bulls (16.8%). the epizootic was apparently precipitated by drought, and infection appeared to be the result of ingesting intrinsically contaminated soil and grass. human illness was not associated with the epizootic. | 1977 | 401803 |
| genotypic variation among arcobacter isolates from a farrow-to-finish swine facility. | arcobacter spp. were isolated from nursing sows and developing pigs on three farms of a farrow-to-finish swine operation and market-age pigs at slaughter. isolates were identified by polymerase chain reaction and genotypic fragment patterns were examined by pulsed-field gel electrophoresis (pfge). incidences of arcobacter-positive samples increased progressively as the pigs aged, resulting in all of the pens at the end of the growth cycle in the finishing barn containing arcobacter-positive fece ... | 2001 | 11347994 |
| prevalence of sparganosis by county of origin in florida feral swine. | sparganosis is a parasitic infection in amphibians, reptiles and mammals including feral swine and man. it is caused by migration of the metacestode (spargana) of spirometra. the primary objective of this study was the determination of the prevalence of gross sparganosis in florida county of origin in slaughtered feral swine. tracebacks to county of origin were conducted for florida feral swine with and without gross sparganosis. feral swine trapped in florida and presented for slaughter in a te ... | 2001 | 11390076 |
| sylvatic trichinellosis in texas. | there are no published reports of domestic or sylvatic trichinellosis in texas. the aim of the present survey was to determine the presence of trichinella species in selected representative species of potential wildlife reservoirs in southern texas. in 1998-99, tongues of 211 wild mammals were collected in southern texas: 154 coyotes (canis latrans), three bobcats (lynx rufus), 32 racoons (procyon lotor), 13 opossum (didelphis marsupialis), four ocelots (leopardus pardalis) and five wild boars ( ... | 2001 | 11484391 |
| trichinella infection in wildlife of the southwestern united states. | several potential mammalian reservoirs of sylvatic species of trichinella were examined from texas, new mexico, and arizona. during 1998-99, tongues were collected from a black bear (ursus americanus) in arizona; from 9 black bears, a coyote (canis latrans), and a mountain lion (felis concolor) in new mexico; and from 154 coyotes, 32 raccoons (procyon lotor), 13 opossums (didelphis marsupialis), 4 ocelots (leopardus pardalis), 3 bobcats (lynx rufus), and 5 feral hogs (sus scrofa) in southern tex ... | 2001 | 11695403 |
| analysis of serum and whole blood values in relation to helminth and ectoparasite infections of feral pigs in texas. | in the summers of 1996 and 1997, 60 wild pigs (sus scrofa) were necropsied from three sites in south texas (usa) to test the hypothesis that serum and whole blood parameters vary significantly (p < or = 0.05) with the prevalence and intensity of parasites infecting wild pigs. we found ten parasite species: five nematodes (metastrongylus salmi, metastrongylus pudentotectus, stephanurus dentatus, oesophagostomum dentatum, and physocephalus sexalatus); four ixodid ticks (amblyomma cajennense, ambly ... | 2002 | 12038138 |
| determination of the occurrence of arcobacter butzleri in beef and dairy cattle from texas by various isolation methods. | arcobacter butzleri is a pathogenic bacterium that has been found in dairy cattle, pigs, poultry, and humans. as of this writing, there are no data on the incidence of a. butzleri in beef cattle. given the differences in rearing practices used for feedlot cattle and those used for dairy cattle, differences in the incidences of this organism in various types of cattle may also exist. numerous culture methods have been used to isolate a. butzleri, but there are few data on the comparative efficaci ... | 2002 | 12495000 |
| geographic variations, cloning, and functional analyses of the venom acidic phospholipases a2 of crotalus viridis viridis. | geographic venom samples of crotalus viridis viridis were obtained from south dakota, wyoming, colorado, oklahoma, texas, new mexico, and arizona. from these samples, the phospholipases a(2) (pla(2)s) were purified and their n-terminal sequences, precise masses, and in vitro enzymatic activities were determined. we purified two to four distinct acidic pla(2)s from each sample; some of them displayed different inhibition specificities toward mammalian platelets. one of the acidic pla(2)s induced ... | 2003 | 12623078 |
| 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 ... | 2004 | 15080216 |
| prevalence of campylobacter, salmonella, and arcobacter species at slaughter in market age pigs. | a survey was conducted to determine the prevalence of campylobacter, salmonella, and arcobacter species in market age pigs from an integrated swine operation in texas. our findings indicate that farms from this commercial operation were heavily contaminated with campylobacter and salmonella, that the isolation rates of c. jejuni were higher than predicted, and that there was a low prevalence of arcobacter. | 1999 | 10659364 |
| comparing the effects of physical practice and mental imagery rehearsal on learning basic surgical skills by medical students. | the purpose of this study was to test the effects of varying the amount of physical practice and mental imagery rehearsal on learning basic surgical procedures. | 2004 | 15547570 |
| 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 ... | 2004 | 15643834 |
| trichinella pseudospiralis from a wild pig in texas. | in december 2001, the routine inspection of a wild boar intended for human consumption revealed the presence of trichinella ssp. larvae. biological, morphological and genetic analyses demonstrated the parasite to be trichinella pseudospiralis. this is the second report of t. pseudospiralis in the united states and the first report of the parasite in a food animal species in the u.s. | 2005 | 15990234 |
| vancomycin-resistant enterococcus faecium strains isolated from community wastewater from a semiclosed agri-food system in texas. | vancomycin-resistant enterococcus faecium strains (vre) were isolated from human wastewater but not swine fecal waste from a semiclosed agri-food system in texas. forty-nine vre isolates possessed vana, and one possessed vanb. twenty-one pulsed-field gel electrophoresis types were identified and segregated into three groups. there was evidence of clonal dissemination among geographically separated sites. | 2005 | 16189128 |
| epidemiology of neurocysticercosis in houston, texas. | we identified 114 patients with neurocysticercosis admitted to ben taub general hospital in houston, texas between january 1994 and june 1997. most of these patients were born in mexico (78%) or central america (16%), but 6% were born in the united states. review of neurology clinic records identified 54 patients diagnosed with neurocysticercosis, representing 2% of all neurology clinic patients and 16% of all hispanics diagnosed with seizures. forty-one patients were interviewed and all reporte ... | 2005 | 16222023 |
| prevalence of class 1 integrons and antimicrobial resistance gene cassettes among enteric bacteria found in multisite group-level cohorts of humans and swine. | the prevalence of antimicrobial resistance genotypic characteristics (class 1 integrons and antimicrobial resistance gene cassettes) among commensal escherichia coli isolated from humans and swine in a semiclosed, integrated farrow-to-fork population was evaluated in a cross-sectional study. the objective of this study was to establish baseline antimicrobial resistance patterns of enteric bacteria from animals and humans within the study population; specifically, genotypic traits both unique and ... | 2005 | 16355844 |
| a preliminary survey of antibiotic resistance of salmonella in market-age swine. | we conducted an epidemiological survey of antibiotic resistance in salmonella recovered from market-age swine at five different texas farms. these farms, which were visited between october 1997 and june 1998, were completely integrated, farrow-to-finish operations. samples were taken from the lymph nodes and cecal contents at the time of slaughter. the salmonella samples that were recovered were sent to the national veterinary services laboratory for serotyping. antibiotic resistance was determi ... | 1999 | 10659370 |
| influenza exposure in united states feral swine populations. | swine play an important role in the disease ecology of influenza. having cellular receptors in common with birds and humans, swine provide opportunities for mixed infections and potential for genetic reassortment between avian, human, and porcine influenza. feral swine populations are rapidly expanding in both numbers and range and are increasingly coming into contact with waterfowl, humans, and agricultural operations. in this study, over 875 feral swine were sampled from six states across the ... | 2008 | 18436668 |
| diagnostic specificity of a real-time rt-pcr in cattle for foot-and-mouth disease and swine for foot-and-mouth disease and classical swine fever based on non-invasive specimen collection. | foot-and-mouth disease virus (fmdv) and classical swine fever virus (csfv) are highly contagious and can cause great economic losses when introduced into disease-free regions. accurate estimates of diagnostic specificity (sp) are important when considering the implementation of surveillance for these agents. the purpose of this study was to estimate diagnostic sp of a real-time reverse-transcriptase pcr assay developed for detection of fmdv in cattle and domestic swine and csfv in domestic swine ... | 2008 | 18499360 |
| development of an in vivo tumor-mimic model for learning radiofrequency ablation. | radiofrequency ablation requires accurate probe placement using ultrasound guidance. the purpose of this study was to develop an in vivo tumor-mimic model for learning open and laparoscopic radiofrequency ablation. tumor-mimics were created in ex vivo porcine livers by injecting a mixture of 3% agarose, 3% cellulose, 7% glycerol, and 0.05% methylene blue, which formed 1 cm hyperechoic, discrete lesions on ultrasound. open and laparoscopic (using a box-trainer) ablation techniques were practiced. ... | 2000 | 11307098 |
| diurnal odor, ammonia, hydrogen sulfide, and carbon dioxide emission profiles of confined swine grower/finisher rooms. | the objective of this study was to obtain diurnal variation profiles of odor and gas (ammonia [nh3], hydrogen sulfide [h2s], carbon dioxide [co2]) concentrations and emission rate (ogcer) from confined swine grower/ finisher rooms under three typical weather conditions (warm, mild, and cold weather) in a year. two grower/ finisher rooms, one with a fully slatted floor and the other with partially slatted floors, were measured for 2 consecutive days under each weather condition. the results revea ... | 2008 | 19044159 |
| research reflections. | dr switzer received d.v.m, from texas a and m, in 1948, m.s. and a ph.d, from iowa state university in 1951 and 1954 and the dr.h.c. from the university of vienna, in 1979. he was professor of iowa state university, veterinary medical research inst, during 1961-74. he later became the associate dean for research, isu college of veterinary medicine, 1974-90. in 1990 he became distinguished professor emeritus, iowa state university, 1990 and associate dean emeritus, in 1990 to the present. he has ... | 2009 | 19114983 |
| 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 ... | 2009 | 19178967 |
| molecular characterization of glycoprotein genes and phylogenetic analysis of two swine paramyxoviruses isolated from united states. | two swine paramyxoviruses (spmv)-(81-19252 (texas-81) and 92-7783 (isu-92)-were isolated from encephalitic pigs in the united states in 1981 and 1992. antigenic, morphologic, and biological characteristics of these two viruses were essentially similar to members of the family paramyxoviridae. antigenic analysis by indirect fluorescent antibody, immunoblot, and one-way cross-neutralization tests placed these viruses along with bovine parainfluenza 3 (bpiv3) viruses. purified virions were 50-300 n ... | 2009 | 19337823 |
| feral swine contact with domestic swine: a serologic survey and assessment of potential for disease transmission. | feral swine (sus scrofa) are present in 38 of the 50 united states, and their populations continue to expand. domestic swine are widely regarded as vulnerable to diseases harbored by feral swine. our objectives were to determine antibody prevalence for selected pathogens in texas feral swine populations and identify contact events between feral and domestic swine. overall prevalence of antibodies against brucellosis and pseudorabies virus was 11% and 30%, respectively. antibodies to porcine repr ... | 2009 | 19395751 |
| update: infections with a swine-origin influenza a (h1n1) virus--united states and other countries, april 28, 2009. | since april 21, 2009, cdc has reported cases of respiratory infection with a swine-origin influenza a (h1n1) virus (s-oiv) transmitted through human-to-human contact. this report updates cases identified in u.s. states and highlights certain control measures taken by cdc. as of april 28, the total number of confirmed cases of s-oiv infection in the united states had increased to 64, with cases in california (10 cases), kansas (two), new york (45), ohio (one), and texas (six). cdc and state and l ... | 2009 | 19407737 |
| update: drug susceptibility of swine-origin influenza a (h1n1) viruses, april 2009. | since april 21, 2009, cdc has reported cases of respiratory infection with a swine-origin influenza a (h1n1) virus (s-oiv) that is being spread via human-to-human transmission. as of april 28, the total number of confirmed s-oiv cases in the united states was 64; these cases occurred in california (10 cases), kansas (two), new york (45), ohio (one), and texas (six). the viruses contain a unique combination of gene segments that had not been reported previously among swine or human influenza viru ... | 2009 | 19407738 |
| update: swine influenza a (h1n1) infections--california and texas, april 2009. | on april 21, 2009, cdc reported that two recent cases of febrile respiratory illness in children in southern california had been caused by infection with genetically similar swine influenza a (h1n1) viruses. the viruses contained a unique combination of gene segments that had not been reported previously among swine or human influenza viruses in the united states or elsewhere. neither child had known contact with pigs, resulting in concern that human-to-human transmission might have occurred. th ... | 2009 | 19407739 |
| 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 ... | 1975 | 238050 |
| the changing epidemiology of human brucellosis in texas, 1977-1986. | from 1977-1986, a total of 331 laboratory confirmed cases of human brucellosis were reported in texas. the annual number of cases ranged from 13 in 1977 to 84 in 1983. males accounted for 66% of the cases. cases ranged in age from one to 92 years, with 57% between the ages of 20 and 49 years. brucella melitensis infections accounted for 66% of the bacteriologically confirmed cases. infection with brucella canis was identified in four patients. annual incidence rates were higher in hispanics in e ... | 1989 | 2787107 |
| agglutinins to coxiella burnetii and brucella spp, with particular reference to brucella canis, in wild animals of southern texas. | the prevalence of agglutinins to coxiella burnetii and brucella spp, particularly brucella canis, was determined in 269 wild animals (14 species) in southern texas. serologic evidence of coxiellosis and brucellosis, including b canis infection, was shown for coyotes, raccoons, opossums, badgers, jackrabbits, and feral hogs. using the microagglutination test, the seroprevalence of c burnetii, phases i and ii (titer greater than or equal to 4) was 4.1 and 27.9%, respectively. for brucella agglutin ... | 1977 | 924870 |
| swine-origin influenza a (h1n1) virus infections in a school - new york city, april 2009. | on april 24, 2009, cdc reported eight confirmed cases of swine-origin influenza a (h1n1) virus (s-oiv) infection in texas and california. the strain identified in u.s. patients was confirmed by cdc as genetically similar to viruses subsequently isolated from patients in mexico. since april 24, the number of cases in the united states and elsewhere has continued to rise. as of april 28, approximately half (45) of all u.s. cases of s-oiv infection had been confirmed among students and staff member ... | 2009 | 19444151 |
| relationship between level of antibiotic use and resistance among escherichia coli isolates from integrated multi-site cohorts of humans and swine. | the objective of this longitudinal ecological study was to examine the relationship between the prevalence of antibiotic-resistant (ar) commensal escherichia coli isolates from both monthly human wastewater and composite swine fecal samples and the concurrent aggregated monthly antibiotic use recorded within each host species in multi-site vertically integrated swine and human populations. in addition, human vocation (swine worker versus non-swine worker), swine production group, and season were ... | 2009 | 19501924 |
| modelling spread of foot-and-mouth disease in wild white-tailed deer and feral pig populations using a geographic-automata model and animal distributions. | we investigated how the size and distribution of wild deer and feral pigs - species that might act as potential foot-and-mouth disease (fmd) virus maintenance hosts - might affect the persistence and spread of fmd. we used a susceptible-latent-infected-recovered geographic-automata model and spatially referenced data from southern texas, usa. within this study area, 100 locations were randomly selected and fmd virus spread was simulated (50 simulations each) at each location. as expected, the pr ... | 2009 | 19515439 |
| first record of pseudorabies in feral swine in nebraska. | in 2007, two new populations of feral swine were discovered in nance and valley counties, nebraska, usa. necropsies and serologic testing was done on two individuals from the nance county herd. results indicated that a lactating sow had positive antibodies for pseudorabies virus (prv). investigations conducted by nebraska game and parks commission law enforcement division confirmed that the infected individual was transported illegally to nebraska, usa, from texas, usa. all domestic swine herds ... | 2009 | 19617504 |
| seroprevalence of and risk factors for toxoplasma gondii in the us swine herd using sera collected during the national animal health monitoring survey (swine 2006). | the united states department of agriculture (usda) initiated the national animal health monitoring system (nahms) in 1983 to collect, analyse and disseminate data on animal health, management and productivity in us domestic livestock populations, including swine. the programme includes an on-farm serological sampling component which can be used to monitor seroprevalence of various pathogens, including toxoplasma gondii. the purpose of this study was to determine the seroprevalence of t. gondii i ... | 2010 | 19744304 |
| varied prevalence of clostridium difficile in an integrated swine operation. | the objectives of this study were to compare the prevalence of clostridium difficile (cd) among different age and production groups of swine in a vertically integrated swine operation in texas in 2006 and to compare our isolates to other animal and human isolates. results are based on 131 cd isolates from 1008 swine fecal samples and pork trim samples (overall prevalence of 13%). the prevalence (number positive/number tested in production type) of cd was different between the groups (p<or=0.001) ... | 2009 | 19778624 |
| investigation of nocturnal oviposition by necrophilous flies in central texas. | the need to accurately estimate the postmortem interval (pmi) has prompted research into factors affecting fly oviposition (i.e., oviposition and/or larviposition) on a corpse. research efforts have focused on whether or not diurnally active flies oviposit during nighttime hours. this study reports that nocturnal oviposition (defined as occurring between 2100-0600 h cdst (central daylight savings time)) did not occur on freshly killed white rats or mice, on beef (fresh or aged up to 48 h), on fr ... | 2006 | 16423236 |
| locally acquired hepatitis e virus infection, el paso, texas. | hepatitis e virus (hev) is an enterically transmitted rna virus that causes both epidemic and sporadic cases of acute hepatitis. despite sero-surveys showing antibody to hev in up to 36% of the us population, acute hepatitis e has been reported among individuals with no history of international travel only three times in the united states. we report a case of apparently locally-acquired hepatitis e that occurred in el paso, texas that was 98% similar to a previously isolated hev found in swine i ... | 2006 | 16628579 |
| the frequency of lymphocytic gastritis in baboons. | in 1985, two independent reports highlighted a novel subtype of chronic inflammation in the gastric mucosa, characterized by the intraepithelial lymphocytic infiltration (ili) both in the surface and the foveolar epithelium. the disease, subsequently called lymphocytic gastritis (lg) is a rare form of gastritis (0.8%-1.6% of cases), with unclear pathogenesis. more recently, lg was recorded in pigs and in non-human primates. | 2008 | 18396790 |
| multiple lineages of antigenically and genetically diverse influenza a virus co-circulate in the united states swine population. | before the isolation of h3n2 viruses in 1998, swine influenza in the united states was an endemic disease caused exclusively by classical-swine h1n1 viruses. in this study we determined the antigenic and phylogenetic composition of a selection of currently circulating strains and revealed that, in contrast to the situation pre-1998, the swine population in the united states is now a dynamic viral reservoir containing multiple viral lineages. h3n2 viruses still circulate and representatives of ea ... | 2004 | 15163491 |
| species-specific visitation and removal of baits for delivery of pharmaceuticals to feral swine. | within the domestic swine industry there is growing trepidation about the role feral swine (sus scrofa) play in the maintenance and transmission of important swine diseases. innovative disease management tools for feral swine are needed. we used field trials conducted in southern texas from february to march 2006 to compare species-specific visitation and removal rates of fish-flavored and vegetable-flavored baits with and without commercially available raccoon (procyon lotor) repellent (trial 1 ... | 2007 | 17699086 |
| outside the box and into thick air: implementation of an exterior mobile pediatric emergency response team for north american h1n1 (swine) influenza virus in houston, texas. | we describe the implementation of a mobile pediatric emergency response team for mildly ill children with influenza-like illnesses during the h1n1 swine influenza outbreak. | 2010 | 19837479 |
| distribution and interspecies contact of feral swine and cattle on rangeland in south texas: implications for disease transmission. | the last outbreak of foot-and-mouth disease (fmd) in the united states occurred in 1929. since that time, numbers and distribution of feral swine (sus scrofa) have increased greatly, especially in the southern states. this creates a potential risk to livestock production because swine are susceptible to, and can be carriers of, several economically harmful diseases of livestock. most importantly, swine are potent amplifiers of fmd virus. in this study, global positioning system (gps) collars wer ... | 2010 | 20090028 |
| coding of influenza a h1n1 virus calls received by texas poison centers. | the utilization of poison center data for research and surveillance depends on the complete and accurate coding of the data. | 2010 | 20507247 |
| goat lab as alternative or adjunct to pig head model for practice cutaneous surgery. | | 2000 | 11050512 |
| the potential role of wild and feral animals as reservoirs of foot-and-mouth disease. | we investigated the potential role of feral pigs and wild deer as fmd reservoirs with a susceptible-latent-infected-recovered geographic-automata model, using spatially referenced data from southern texas, usa. an uncontrolled fmd outbreak initiated in feral pigs and in wild deer might infect up to 698 (90% prediction interval 181, 1387) and 1557 (823, 2118) cattle and affect an area of 166 km(2) (53, 306) and 455 km(2) (301, 588), respectively. the predicted spread of fmd virus infection was in ... | 2007 | 17316848 |
| postmortem findings in eight cases of influenza a/h1n1. | in march and early april 2009, cases of a new swine-origin influenza a (h1n1) virus were diagnosed in mexico and the united states. influenza virus presents as a respiratory infection with high morbidity and mortality. we describe the postmortem findings of eight confirmed cases of influenza a/h1n1 in a medical examiner setting. the eight cases falling under the jurisdiction of the harris county medical examiner (houston, tx, usa) with confirmed influenza a/h1n1 infection between june and septem ... | 2010 | 20802471 |
| utilizing spatiotemporal analysis of influenza-like illness and rapid tests to focus swine-origin influenza virus intervention. | in the spring of 2009, a novel strain of h1n1 swine-origin influenza a virus (s-oiv) emerged in mexico and the united states, and soon after was declared a pandemic by the world health organization. this work examined the ability of real-time reports of influenza-like illness (ili) symptoms and rapid influenza diagnostic tests (ridts) to approximate the spatiotemporal distribution of pcr-confirmed s-oiv cases for the purposes of focusing local intervention efforts. cluster and age adjusted relat ... | 2010 | 20810301 |
| response to h1n1 in a u.s.-mexico border community. | public health experts from a county health department and a school of public health collaborated to establish a simple, functional surveillance system to monitor swine-origin influenza virus as it crossed from mexico into a texas border community during the 2009 pandemic. the draft national and state preparedness plans were found to be cumbersome at the local level, so a simple, more practical real-time surveillance and response system was developed, in part by modifying these documents, and imm ... | 2010 | 20825334 |
| japanese encephalitis in two children--united states, 2010. | japanese encephalitis virus (jev) is the leading cause of vaccine-preventable encephalitis in asia and the western pacific. jev is maintained in an enzootic cycle involving mosquitoes and amplifying vertebrate hosts, mainly pigs and wading birds. the virus is transmitted to humans primarily by culex mosquitoes, which breed in flooded rice fields and pools of stagnant water and most often feed outdoors during the evening and night. jev transmission occurs mainly in rural agricultural areas, but o ... | 2011 | 21389931 |
| contributions of an animal scientist to reproductive biology. | i became interested in biology as an undergraduate in a pre-medical curriculum, but developed a passion for the field of reproductive biology because of a course in physiology of reproduction taken to meet requirements for admission to veterinary school. my career path changed and i entered graduate school, obtained the ph.d. and have enjoyed an academic career as a reproductive biologist conducting research in uterine biology and pregnancy in animal science departments at the university of flor ... | 2011 | 21565996 |
| estimates of the seroprevalence of production-limiting diseases in wild pigs. | | 2011 | 21610003 |
| disease spread models in wild and feral animal populations: application of artificial life models. | the role that wild and feral animal populations might play in the incursion and spread of important transboundary animal diseases, such as foot and mouth disease (fmd), has received less attention than is warranted by the potential impacts. an artificial life model (sirca) has been used to investigate this issue in studies based on spatially referenced data sets from southern texas. an incursion of fmd in which either feral pig or deer populations were infected could result in between 698 and 15 ... | 2011 | 21961216 |
| bait preference of free-ranging feral swine for delivery of a novel toxicant. | invasive feral swine (sus scrofa) cause extensive damage to agricultural and wildlife resources throughout the united states. development of sodium nitrite as a new, orally delivered toxicant is underway to provide an additional tool to curtail growth and expansion of feral swine populations. a micro-encapsulation coating around sodium nitrite is used to minimize detection by feral swine and maximize stability for the reactive molecule. to maximize uptake of this toxicant by feral swine, develop ... | 2016 | 26812148 |
| antibodies to west nile virus in feral swine from florida, georgia, and texas, usa. | west nile virus (wnv) exposure has not yet been reported in feral swine (sus scrofa) despite the broad geographic range and population density of this species. the objectives of this study were to determine the prevalence of antibodies to wnv in feral pigs, and to evaluate serologic diagnostics as applied to this species. feral pig serum from three states was evaluated for antibodies to wnv. the overall wnv seroprevalence rate for 222 samples collected in 2001-2004 was 22.5%. seroprevalence rate ... | 2006 | 16989565 |
| respiratory issues in beef and pork production: recommendations from an expert panel. | this paper summarizes "respiratory issues in confined feeding operations," a panel discussion at the agricultural safety and health council of america/national institute for occupational safety and health conference, "be safe, be profitable: protecting workers in agriculture," dallas/fort worth, texas, january 27-28, 2010. occupational exposure to confined animal feeding operations is associated with cough, wheezing, and shortness of breath. published data shows that 20% to 40% of hog confinemen ... | 2010 | 20665307 |
| polybrominated diphenyl ether levels in foodstuffs collected from three locations from the united states. | the objectives of this study were to provide updated measurements of pbdes in us food, to estimate possible difference in levels from differing geographical regions, and to provide an improved estimate of current dietary intake. | 2010 | 19835901 |
| livestock handling--minimizing worker injuries. | numerous hazards may occur on farms raising livestock. animal contact is often ranked as the first or second leading cause of injuries on the farm. in addition to direct trauma from the animal, other injuries may occur from injection of medications, chemical splashes from cleaning the facility, and repetitive motion injuries. exposures to toxic gases from decomposition of animal waste such as in manure pits and exposure to animal allergens may cause adverse health effects in humans. one addition ... | 2010 | 20665308 |
| the effect of neighbourhood definitions on spatio-temporal models of disease outbreaks: separation distance versus range overlap. | the definition of the spatial relatedness between infectious and susceptible animal groups is a fundamental component of spatio-temporal modelling of disease outbreaks. a common neighbourhood definition for disease spread in wild and feral animal populations is the distance between the centroids of neighbouring group home ranges. this distance can be used to define neighbourhood interactions, and also to describe the probability of successful disease transmission. key limitations of this approac ... | 2011 | 21856028 |
| use of serology and bacterial culture to determine prevalence of brucella spp. in feral swine (sus scrofa) in proximity to a beef cattle herd positive for brucella suis and brucella abortus. | using serology and bacterial culture, we determined the prevalence of brucella spp. and the antibody to brucella spp. in a feral swine (sus scrofa) population in proximity to a cattle herd that was culture positive for brucella abortus and brucella suis in north-central texas, usa. during a prospective cross-sectional quantitative study in april 2005, we collected blood and tissue samples from 40 feral swine within a 30-km radius of the infected herd. serum samples were tested by the rose bengal ... | 2013 | 23568896 |
| Absence of Mycobacterium bovis in feral swine (Sus scrofa) from the southern Texas border region. | Free-ranging wildlife, such as feral swine (Sus scrofa), harbor a variety of diseases that are transmissible to livestock and could negatively impact agricultural production. Information is needed regarding the exposure and infection rates of Mycobacterium bovis and many other diseases and parasites in feral swine occurring in the Texas border region. Our main objective was to determine exposure rates and possible infection rates of M. bovis in feral swine by opportunistically sampling animals f ... | 2011 | 22102669 |
| outbreak of progressive inflammatory neuropathy following exposure to aerosolized porcine neural tissue. | in the fall of 2007, the minnesota department of health was notified of 11 cases of an unexplained neurological illness, all linked to a pork processing plant, quality pork processors, inc., in austin, mn. the cluster of workers had been experiencing similar symptoms, including fatigue, pain, numbness, and tingling in their extremities as well as weakness. the symptoms were described as more sensory than motor, and all patients had evidence of polyradiculoneuropathy with signs of nerve root irri ... | 2009 | 19787653 |
| survey of feral swine ( sus scrofa ) infection with the agent of chagas disease ( trypanosoma cruzi ) in texas, 2013-14. | : feral swine ( sus scrofa ) are an invasive species and reservoir of numerous zoonotic pathogens in the us, and texas leads the nation in the estimated population size of feral hogs. texas also harbors enzootic transmission cycles of the protozoan parasite trypanosoma cruzi , agent of chagas disease. given previous evidence that swine can serve as reservoirs of t. cruzi in latin america and new evidence of triatomines (kissing bugs) feeding on swine in texas, we measured the prevalence of t. cr ... | 2016 | 27224214 |
| first reports of pseudorabies and winter ticks (dermacentor albipictus) associated with an emerging feral swine (sus scrofa) population in new hampshire. | the expansion of feral swine (sus scrofa) populations into new geographic regions is of concern not only due to increased range but also because they carry diseases and parasites that pose a threat to humans, livestock, and wildlife into new areas. recently, emerging feral swine populations have been reported in the northeastern us and due to their adaptive nature will likely continue to spread. during 2009-2012, 49 feral swine were removed from three counties in new hampshire. of these, serum s ... | 2014 | 24171577 |
| use of remote cameras to monitor the potential prevalence of sarcoptic mange in southern texas, usa. | sarcoptic mange, caused by the mite sarcoptes scabiei , is a common, highly contagious skin disease that has been reported from more than 100 species of mammals, including humans. our objectives were to 1) determine the prevalence of sarcoptic mange within mammals from southern texas, and 2) determine the efficacy of using remote cameras to estimate mange prevalence. we collected remote camera photographs from a 64-km(2) area and blood and skin scrapings from 166 mammals representing 12 species ... | 2017 | 28135133 |
| wildlife contact rates at artificial feeding sites in texas. | given the popularity of feeding white-tailed deer (odocoileus virginianus) in texas and the increasing amount of corn that is distributed, more information is needed on the impacts of this activity on non-target wildlife. our objectives were to report visitation, intra- and interspecific contact, and contact rates of wildlife at artificial feeding sites in texas. our study was conducted at three sites in kleberg and nueces counties, texas. we trapped animals from february to april and august to ... | 2013 | 23609307 |
| impact of baiting on feral swine behavior in the presence of culling activities. | we studied the effects of baiting on feral swine (sus scrofa) movements and corresponding likelihood of disease spread under real and simulated culling pressure. our objectives were to determine the proportion of feral swine that used the bait station site, and if baiting of feral swine altered areas of utilization, distances from location centroids to treatment location (control or bait station), and movement rates by survivors during culling activities. we hypothesized that the bait station wo ... | 2012 | 22305877 |
| antibodies to various zoonotic pathogens detected in feral swine (sus scrofa) at abattoirs in texas, usa. | the zoonotic risk posed to employees by slaughtering feral swine (sus scrofa) at two abattoirs in texas was assessed by testing feral swine serum samples for exposure to influenza a virus, leptospira, trichinella spiralis, and toxoplasma gondii. blood was collected from a total of 376 feral swine between the two facilities during six separate collection periods in 2015. antibodies to one or more serovars of leptospira were identified in 48.9% of feral swine tested, with bratislava and pomona as ... | 2017 | 28686494 |
| identification of brucella spp. in feral swine (sus scrofa) at abattoirs in texas, usa. | various tissues, nasal swabs, urine and blood samples were collected from 376 feral swine at two federally inspected abattoirs in texas during six separate sampling periods in 2015. samples were tested for brucella spp. by culture and serology. brucella spp. were cultured from 13.0% of feral swine, and antibodies were detected in 9.8%. only 32.7% of culture-positive feral swine were also antibody positive, and 43.2% of antibody-positive feral swine were culture positive. approximately, the same ... | 2017 | 28391650 |
| inferring invasive species abundance using removal data from management actions. | evaluation of the progress of management programs for invasive species is crucial for demonstrating impacts to stakeholders and strategic planning of resource allocation. estimates of abundance before and after management activities can serve as a useful metric of population management programs. however, many methods of estimating population size are too labor intensive and costly to implement, posing restrictive levels of burden on operational programs. removal models are a reliable method for ... | 2016 | 27755739 |