What are the 5 stages of infection?
The five periods of disease (sometimes referred to as stages or phases) include the incubation, prodromal, illness, decline, and convalescence periods (Figure 2)..
What are the three steps in the chain of infection?
Chain of infectionThe Chain of Infection. … The reservoir. … The portal of exit from the reservoir. … The mode of transmission. … The portal of entry into the ‘host’ … The susceptible host. … The infectious agent.
What are the six types of infectious agents?
In this activity you will begin exploring the different types of pathogens as well as examining specific examples of each type in order to identify what is plaguing Anna. There are six major types of infectious agents: bacteria, viruses, fungi, protozoa, helminthes, and prions.
What are the 4 stages of communicable illness?
The natural history of an untreated communicable disease has four stages: stage of exposure, stage of infection, stage of infectious disease, and stage of outcome.
What is the illness stage?
During the illness stage, symptoms characteristic of a particular disease are recognized. It is also at this stage that the infectious disease is highly communicable. When the patient overcomes the disease, the ensuing stage is the convalescent period. Also called: illness stage.