事实再一次说明商业公司几乎最终都会因为诸如蓝耳病和支原体病毒等疾病问题而终止。
Once again the facts say that commercial companies almost always end up with all of their farms + ve for diseases like PRRS and Mycoplasma.
肺支原体是实验大鼠和小鼠的重要致病微生物，所导致的鼠呼吸系统支原体病也是研究人类呼吸系统感染的动物模型。
M. pulmonis is not only an important pathogenic organism to laboratory rats and mice, but also is an extremely suitable model organism to study pathogenesis of human respiratory system.
他解释说对于支原体感染和淋病过去的研究得出了相同的结果，但对于滴虫病全部的证据并不充分。
Past studies have yielded similar findings when it comes to chlamydia and gonorrhea, he explained, but the overall evidence is not as strong for trichomoniasis.
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