| sarcocystis calchasi-associated neurologic disease in a domestic pigeon in north america. | tissue cysts of a protozoan parasite were present in the skeletal muscle of a domestic pigeon (columba livia f. domestica) with neurologic disease in minnesota, usa. the animal had a severe granulomatous meningoencephalitis. the cysts were slender, up to 1 mm long and up to 0.03 mm in diameter. the cysts had a smooth wall without projections. size and wall morphology were compatible with sarcocystis calchasi. polymerase chain reaction using s. calchasi-specific primers resulted in a specific amp ... | 2011 | 21848932 |