1Clark K, Army S, Scheidt K, et al. Investigating the transmission of Mycoplasma hyopneumoniae in a swine herd with enzootic pneumonia [J]. Vet Med,1991,(3):543-550.
2Livingston C W, Stair E L, Mebus C A. Pathogenesis of Mycoplasma hyopneumoniae in swine [J]. Am J Vet Res,1972,33:2249-2258.
3Mebus C A, Underdahl N R. Scanning electron microscopy of trachea and bronchi from gnotobiotic pigs inoculated with Mycoplasma hyopneumoniae [J]. Am J Vet Res,1997,38:1249-1254.
4Mattsson J G, Bergstrom K, Wallgren P, et al. Detection of Mycoplasma hyopneumo- niae in nose swabs from pigs by in vitro amplification of the 16S rRNA gene [J]. J Clin Micro,1995,33:893-897.
