PUBH 302 Exam 3 | 100% Correct Answers | Verified | Latest 2024 Version

Articulate the difference between infectious and communicable disease - An infectious disease is caused by different classes of pathogenic organisms which are commonly called germs; these agents are normally viruses or bacteria. A communicable disease is an infectious disease that is easily spread from one species to another A communicable disease is infectious disease that is easily spread from what to what? - one species to another All __________ diseases are infectious diseases but not all _________ diseases are communicable. - communicable; infectious List and define three direct routes of infectious disease transmission. - skin to skin (herpes type 1) Mucous to mucous (STIs) Through breastmilk (HIV) List and define three indirect routes of infectious disease transmission - food-borne (salmonella) water-borne (cholera) vector-borne (malaria) What are the three part to the "epi" triad for disease transmission? - agent, host, environment What is the agent? - factor such as a micro organism, chemical substance, form of radiation...whose presence, excessive presence, or absence is essential for the occurrence of a disease infectivity - ability to invade and multiplypathogenicity - ability to cause disease