Person who studied cholera epidemics in the mid-1800's in London
Who is Snow?
The organisms that becomes infected with a disease
What is a host?
Category of prevention that can include screening
What is secondary prevention
Number of people who die/total population exposed to a disease in a sample
What is mortality rate?
Category of people who have a disease in a study
What is a case
Disease that had 3 major waves in history
What is the plague
A factor that transmits a disease but doesn't cause the disease directly
What is a vector?
This level of prevention may include rehabilitation or surgery
What is tertiary prevention?
Total number of people who get a disease/total population
What is the incidence rate?
The whole group in which a disease is being studied.
What is the population?
Person who discovered prions
Who is Prusiner?
A type of infectious agent that may have either RNA or DNA as its genetic material
What is a virus?
Type of Disease Transmitted from animals
What is zoonotic?
Number of people who die/Number of people sick in a sample
What is the fatality rate
This model contains the elements of host, agent, and environment.
What is the epidemiological triad?
Person who developed germ theory
Who is Robert Koch
An organism which may host a pathogen but not become ill. This organism may allow the pathogen to reproduce creating a large pool of pathogen.
What is a reservoir?
Type of disease transmitted within a healthcare setting
What is nosocomial?
Total number of people who get a disease/total number of people exposed to the disease
What is the attack rate?
Person who found a way to make milk safer and showed that microorganisms didn't just appear from nothing
Who is Louis Pasteur?
Movement of a pathogen from reservoir to host to another host and back to the reservoir
What is chain of transmission?
Conditions that must be met for a disease to be called transmissable
What are Koch's postulates?
Number of new cases of a disease in population in given time (1 year) Average total population in same time period
What is incidence