William P Switzer

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The development of osseous lesions in the nasal turbinates of pigs with experimentally induced Bordetella rhinitis, occurring 2 to 6 weeks after inoculation with Bordetella bronchiseptica strain B, was evaluated ultrastructurally, and comparisons were made with controls. Progressive degenerative changes were seen in osteoblasts and osteocytes of diseased(More)
Fluorescent antibody staining of Mycoplasma hyopneumoniae colonies is difficult because the colonies wash from the agar. Airdrying of the colonies grown on solid medium-overlayed glass microscope slides fixed the colonies in place, so that fluorescent antibody stain could be readily accomplished. Apparent loss or alteration of antigenicity did not result(More)