Zoonoses - group of infectious animal diseases, pathogens are receptive and people. The source of infection for humans is a sick animal. Human infections from a person, as a rule, is not observed. There are zoonoses synanthropic, the sources of infection in which are Pets allowed (brucellosis, SAP, foot and mouth disease and other) and zoonoses wild animals (plague, tularemia, primary encephalitis and other).