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Iowa State University Veterinarian

Collection

Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html

Call Number

SF601 V65

Document Type

Article

Abstract

Respiratory disease is one of the most frequently encountered pathological conditions in swine. The history of respiratory conditions in swine is indeed mystifying. At one time it was presumed that the majority of chronic pneumonias were associated with a virus causing enzootic pneumonia or with lung worms. it now seems probable that there are many primary causal agents.

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