This course is the second part of the Agents of Disease series dealing with diseases caused by infectious agents. This course extends the foundational information obtained on viruses, bacteria and parasites in Agents of Disease I, into understanding diseases caused by these agents in species of veterinary importance. In this course we will continue to integrate concepts on pathogenesis, life cycle, host response, diagnostic tests, and transmission of agents of diseases into developing solutions for diagnosis, prevention and control of infectious diseases in animals.