Observations on the pathology and diagnosis of Mycoplasma hyopneumoniae infection on a minimal disease unit

摘要

The Pig Health Control Association (PHCA) with in excess of 100 herds free from enzoolic pneumonia (Mycoplasma hyopneumoniae MH) practised extensive monitoring of lungs and snouts and also monitored extensively by examination of direct smears from bronchial and bronchiolar mucosae. These methods readily identified herds that had or were breaking down with new infections. In many instances these infections were airborne and resulted from the close proximity (2 miles) of other conventional herds. Thepurpose of this paper is to suggest that hisiopalhological and scanning and transmission electron microscopy are under some circumstances a more definitive technique for early diagnosis., prior to widespread seroconversion, and culture.