 Dr. Ogan doing some more terminology to help you classify different types of infectious diseases. So today in this video we're going to talk about communicable diseases versus non communicable diseases and then contagious diseases. So let's start with non communicable diseases. These are diseases that are not spread from one host to another from one person to another. So the textbook example of this would be tetanus right? You get tetanus from the soil stepping on a rusty nail whatever the whatever the example you want to use but that but you're not going to give that to somebody else right? So that's a non communicable disease. A communicable disease is spread from one host one person to another. So communicable so think about your sexually transmitted diseases, sexually transmitted infections. These would be examples of communicable diseases what you actually get it from someone else and we'll talk about the different types of transmissions in other videos. Contagious diseases I would say the key word here is easily right? So a contagious disease is a type of communicable disease that is spread easily and quickly rapidly from one host to another. So I think about the flu is a good example but to me the best example of a contagious disease is measles. I've seen some data that shows that if someone was if you you know no one's vaccinated there's no immunity. If someone was in the room that you enter four hours ago with measles you might have a 90 plus percent chance of actually getting that infection. So that would be an example of a contagious disease. So communicable diseases are spread from one host to another. Contagious diseases are easily spread from one host to another and non communicable diseases are not spread from one host to another directly. Alright I hope this helps. Have a wonderful day. Be blessed.