Epidemiology
Study of how and why health related event occur and how to prevent and control them
What is epidemiology?
Someone who can pass on disease to others because they've harbored a pathogen for awhile
What is an active carrier?
Directly transferring an infectious agent from person to person
What is direct transmission?
Characterized by bleeding of the gums and under the skin. Caused by vitamin C deficiency. Studied by James Lind
What is scurvy?
Agents that can cause infection like pathogens
What is an infectious agent?
Based on describing health related events
What is descriptive epidemiology?
Someone who has a pathogen and can still pass disease onto others despite being in the recovery phase
What is a convalescent carrier?
Agent is indirectly transferred through a third party such as the air or food
What is indirect transmission?
Characterized by high fever and many blisters. Caused by variola virus. Studied by Benjamin Jesty.
What is smallpox?
Where the infectious pathogen resides
What is a reservoir?
Based on analyzing health related events
What is analytic epidemiology
Someone who has not gotten sick despite harboring and being exposed to a pathogen
What is a healthy carrier?
Agent is transferred through the air
What is airborne transmission?
Characterized by fever and septicemia. Caused by a uterine infectious. Studied by Ignaz Semmelweis.
What is childbed fever?
How the pathogen leaves the reservoir and is transmitted
What is the portal of exit?
The root of how and why a health outcome happened
What is a cause?
Someone who is barely showing signs of being ill due to being exposed to and carrying a pathogen
What is an incubatory carrier?
Agent is transferred through an arthropod
What is vector-borne transmission?
Characterized by severe diarrhea? Caused by the Vibrio cholera bacterium. Studied by John Snow.
What is cholera?
How the infectious agent enters a body
What is the portal of entry?
What causes more susceptibility towards a certain health outcome
What is a risk factor?
Someone who harbors a pathogen and thus can spread it at different times and places
What is an intermittent carrier?
Agent is transferred by a nonliving object
What is vehicle-borne transmission?
Characterized by bacterial infection. Caused by Bacillus anthracis germ. Studied by Louis Pasteur.
What is anthrax?
Person who is at most risk for infection
What is a susceptible host?