This course will examine the biology of zoonotic agents and the implication of host-pathogen interactions to disease susceptibility and resistance. Students will apply these basic concepts towards the understanding of issues governing pathogenesis, pathology, epidemiology, control and surveillance of zoonotic diseases. Focus will be placed on zoonotic agents currently having a significant impact on animal and public health. Lectures will be followed by active discussion of selected readings. Prerequisites: one of IMIN 200, ZOOL 352, ZOOL 354, ENT 392 or consent of instructor. Credit cannot be obtained for both BIOL 409 and BIOL 509.