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Please read BHL's Acknowledgment of Harmful Content
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  1. By: United States. Department of Agriculture.
    Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, 1973
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: disease surveys  equine encephalomyelitis virus  Horses  Texas  Vaccination  Vaccines  venezuelan equine encephalitis