Relier Pairs 1.13 Natural History of disease and Levels of preventionVersion en ligne Natural History of disease and Levels of prevention par Jorge Arizpe 1 It is the name given to the process of developing a disease without medical intervention. It has three stages prepatogenic, pathogenic and result 2 It is the stage at which guest - Agent and environment are in balance 3 Is an example of the Terciary level of prevention 4 Stage in which symptoms and signs can be distinguished. An agent has managed to break the state of homeostasis 5 Is an example of the First Level of Prevention 6 Is an example of the Secondary level of prevention