| toxoplasmosis and other causes of abortions in sheep from north central united states. | between 1983 and 1989, we examined 1,201 aborted fetuses and dead lambs from the north central united states. toxoplasmosis was diagnosed in 17.5%, campylobacteriosis in 9.9%, chlamydiosis in 4.7%, and miscellaneous infections in 15.1%. inflammatory lesions suggestive of infectious causes were seen in 13%. noninfectious causes were identified in 6.1%, and a diagnosis was not reached in 33.3%. an agglutination test was used to detect toxoplasma gondii-specific antibodies in ovine fluids. toxoplas ... | 1990 | 2298653 |
| serologic prevalence of toxoplasmosis in cattle, sheep, goats, pigs, bison, and elk in montana. | serum samples from 2,539 cattle, 649 sheep, 123 goats, 413 pigs, 93 bison, and 56 elk from montana were examined for antibody to toxoplasma gondii in the sabin-feldman dye test or the modified agglutination test (mat). cattle, bison, and elk serum samples were treated with 0.2 m-mercaptoethanol before examination in mat. in the dye test, 13.2% of sheep, 5.0% of pigs, and 22.7% of goats had antibody at a dilution of greater than or equal to 1:16. in the mat, 3.2% of cattle, 3.1% of bison, and non ... | 1985 | 3997650 |
| ovine abortion and neonatal death due to toxoplasmosis in montana. | of 33 ewes in a flock in montana, 6 aborted or gave birth to weak lambs, which died within 2 days after birth. two lambs and a placenta from 1 ewe as well as 1 lamb from another ewe were submitted for diagnosis. focal necrotizing placentitis, focal pneumonia, focal hepatitis, focal interstitial nephritis, and focal nonsuppurative encephalitis were seen in tissue sections from 2 of the lambs. toxoplasma gondii was found in smears and sections of the placenta and in sections of lung from 1 lamb. m ... | 1984 | 6725101 |
| toxoplasma gondii infection in rodents and insectivores from montana. | | 1983 | 6887438 |
| isolation of encysted toxoplasma gondii from muscles of mule deer in montana. | toxoplasma gondii was isolated from muscles of 2 road-killed mule deer found near bozeman, mont, by feeding muscles to a toxoplasma-free cat. the cat shed t gondii oocysts 5 days after ingesting muscles pooled from the 2 deer. one infective oocyst of this isolate of t gondii was lethal to mice. | 1982 | 7161172 |
| epizootic toxoplasmosis associated with abortion in dairy goats in montana. | perinatal toxoplasmosis was diagnosed in goats from 2 farms in montana. of 7 pregnant does from one farm, 1 aborted a dead fetus and 2 each had a kid infected in utero. toxoplasma gondii was demonstrated histologically in the placenta of 2 of the infected does and by mouse inoculation in all 3 of them. the organism also was isolated from internal organs of 6 of 7 does, 4 of 4 cats, and 3 of 11 chickens from the farm. a pregnant doe from the other farm delivered 3 kids infected with t gondii. one ... | 1981 | 7204243 |
| isolation of encysted toxoplasma gondii from musculature of moose and pronghorn in montana. | pieces of skeletal muscle from 43 mule deer, 34 elk, 4 white-tailed deer, 21 pronghorn, 7 moose, and 2 bison were examined for toxoplasma infection, by the acid-pepsin digestion technique. toxoplasma gondii was isolated from 1 moose and 1 pronghorn. the isolated strains of t gondii were of low virulence to mice. | 1981 | 7224306 |
| survey for selected diseases in nutria (myocastor coypus) from louisiana. | thirty-two trapper-caught nutria (myocastor coypus) from east baton rouge, iberville, tangipahoa, and st. helena parishes in louisiana (usa) were sampled for several disease agents. antibodies against toxoplasma gondii, chlamydia psittaci, francisella tularensis, leptospira spp., and encephalomyocarditis virus were detected in 7%, 14%, 0%, 7%, and 0% of nutria, respectively. both animals seropositive for leptospirae were positive for l. interrogans serovar canicola. no salmonella spp. were isola ... | 1994 | 7933295 |