Epidemiology and Pathogenesis Flashcards
Pathology
Scientific study of disease
Etiology
Cause of a disease
Pathogenesis
The way a disease develop (structural and functional changes)
infection
Invasion or colonization of the body by a pathogenic microbe
disease
When an infection leads to a change in normal status of health.
Does every infection cause disease?
No
Any organism that harbors another organism
Host
3 types of floras
Normal
Resident
Transient
Flora
Permanent; not pathogenic microogaisms
Normal flora
Flora
Always present on/in human body
Resident flora
Flora
Last few hours to few months
Transient flora
Do we have more bacteria than we do cells in our bodies?
Yes
The project to identify all the microbes found in all the different parts of the body and relationship to changes in between the microbiomes, the human body, and disease.
The Human Microbiome Project
Does keeping a healthy normal flora increase the chances of infection and disease?
No, it DECREASES
Name a sterile location in the body
The brain