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MSD MANUAL
Veterinary Manual
PROFESSIONAL CONTENT
PET OWNER CONTENT
ZOONOTIC DISEASES
RESOURCES
QUIZZES
ABOUT
PROFESSIONAL CONTENT
PET OWNER CONTENT
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Contributors
Val Richard Beasley, DVM, PhD
Affiliations
Professor Emeritus of Veterinary, Wildlife, and Ecological Toxicology
University of Illinois, College of Veterinary Medicine