Veterinarians at the Pennsylvania Department of Agriculture are enlisted to prevent illnesses found in animals from spreading to humans. The bureau monitors and regulates the poultry and livestock industries in order to control diseases that could be passed to humans. "Large animal practice is a lot different than many people think of when they go to veterinary school," said Dr. Nan Hanshaw, chief of the animal health division. Working in the public sector is less lucrative than private companion animal practices, however, which can create a shortage of veterinarians; according to AVMA, the average veterinary school debt of a 2010 graduate was $133,873.
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