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prevalence and effect of subclinical ovine progressive pneumonia virus infection on ewe wool and lamb production.the prevalence of infection with ovine progressive pneumonia (opp) virus and its effects on ewe wool and lamb production were investigated in a flock of 2,976 ewes of 6 breed types (rambouillet, targhee, columbia, polypay, 1/4 cross finnsheep, and 1/2 cross finnsheep). prevalence of seropositivity was significantly (p less than or equal to 0.01) lower among rambouillet and targhee breeds (44 and 42%, respectively), intermediate in polypay, columbia, and 1/4 cross finnsheep (approximately 53%), a ...19902170310
approaches to immunization of infants and young children against gastroenteritis due to rotaviruses.recent studies have shown that in developed countries rotaviruses are the single most important etiologic agents of acute gastroenteritis that requires hospitalization of infants and young children. although deaths from gastroenteritis are, in general, infrequent in the developed countries, an effective rotavirus vaccine would clearly be of benefit to reduce the heavy toll of morbidity from gastroenteritis due to rotavirus. in the developing countries the impact of diarrheal diseases is staggeri ...19806251528
muellerius capillaris (mueller, 1889) (nematoda: protostrongylidae): an unusual finding in rocky mountain bighorn sheep (ovis canadensis canadensis shaw) in south dakota.lungs and fecal samples from nine hunter-killed rocky mountain bighorn sheep were examined for lungworms. all samples contained adults and/or larvae of muellerius capillaris (mueller, 1889). protostrongylus spp., the lungworms commonly reported from bighorn sheep, were not present in any samples. larvae of m. capillaris bear a spine on the dorsal side of the posterior end and are shorter than dorsal-spined larvae of other lungworms recorded from north american ungulates. larvae similar in shape ...19846530714
129i and 137cs fission products in thyroids of animals, 1984-1991.iodine is intensely concentrated in the thyroid of animals, while 137cs is not. in this study, 129i and 137cs concentrations were determined in animal thyroids from selected areas during 1984-1991. the thyroids were from deer killed within the savannah river site (srs) in south carolina; from the environs of oak ridge (or), tennessee; west tennessee; and florida. thyroids from sheep slaughtered routinely in birmingham, england (uk), were also tested. the glands were analyzed by x-ray spectroscop ...19938416215
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
the perspicacity of seymour hadwen on tick paralysis--a commentary. 200010921363
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
contamination of gowns, gloves, and stethoscopes with vancomycin-resistant enterococci.[corrected] to measure directly the rate of contamination, during routine patient examination, of gowns, gloves, and stethoscopes with vancomycin-resistant enterococci (vre).200111732785
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
secondary aerosolization of viable bacillus anthracis spores in a contaminated us senate office.bioterrorist attacks involving letters and mail-handling systems in washington, dc, resulted in bacillus anthracis (anthrax) spore contamination in the hart senate office building and other facilities in the us capitol's vicinity.200212472327
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
geographic distribution of the muscle-dwelling nematode parelaphostrongylus odocoilei in north america, using molecular identification of first-stage larvae.molecular identification of dorsal-spined larvae (dsl) from fecal samples indicates that the protostrongylid parasite parelaphostrongylus odocoilei occupies a broader geographic range in western north america than has been previously reported. we analyzed 2,124 fecal samples at 29 locations from thinhorn sheep (ovis dalli dalli and o. d. stonei), bighorn sheep (ovis canadensis canadensis and o. c. californiana), mountain goats (oreamnos americanus), woodland caribou (rangifer tarandus caribou), ...200516108550
cryptosporidiosis outbreaks associated with recreational water use--five states, 2006.cryptosporidiosis is a gastrointestinal illness caused by parasitic protozoa of the genus cryptosporidium and can produce watery diarrhea lasting 1-3 weeks; one or two cases per 100,000 population are reported annually in the united states. fecal-oral transmission of cryptosporidium oocysts occurs through ingestion of contaminated drinking or recreational water, consumption of contaminated food, and contact with infected persons or animals (e.g., cattle or sheep). unlike bacterial pathogens, cry ...200717657205
the silence of the lambs. 201122057805
selenium toxicity in sheep grazing reclaimed phosphate mining sites.phosphate mining operations in southeastern idaho have exposed selenium (se) that was originally sequestered in the subsurface. sheep grazing in these areas have died as a result of high se concentrations in forage and water. this study was designed to monitor the health status of sheep grazing in a natural environment with known elevated levels of se. a total of 72 columbia x suffolk sheep were divided into 3 treatment groups that included control (con), low selenium (lose) and high selenium (h ...200314640477
seasonal dynamics and variation among sheep in densities of the sheep biting louse, bovicola ovis.cyclic patterns and variations among sheep in numbers of bovicola ovis are described in polypay and columbia ewes that were initially infested with equal numbers of lice and penned indoors continuously for 2 years. bovicola ovis populations were censused at 3-4-week intervals at 69 body sites on each animal. in the second year of the study, the ewes were reinfested and half were mated. louse populations were monitored on the resulting lambs from birth until 25 weeks of age. strong seasonal cycle ...19989512991
frequency of bluetongue and bovine parvovirus infection in cattle in south carolina dairy herds.a survey of south carolina diary cattle in 12 commercial herds was conducted, using serologic testing to determine the frequency and impact on reproduction of bluetongue (bt) and bovine parvovirus (bfv) infections. results of the study of serum antibodies titers and dairy cattle health records indicated that the majority of the cattle surveyed was adequately protected against the major reproductive tract diseases through vaccination programs. the frequency of reproductive dysfunction was common ...19826285770
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