Study of the distribution & determinants of health-related states or events in human population & the application of this study to the prevention & control of health problems
What is epidemiology?
Occurs when victims of a common-source epidemic have person-to-person contact with others and spread the disease, resulting in a propagated outbreak
People who become infected and ill after a disease has became introduced into a population
What is a secondary case?
An individual (or group of individuals) who has all the signs and symptoms of a disease or condition yet has not been diagnosed as having the disease
What is suspect case?
An epidemic affecting or attacking the population of an extensive region, country, or continent
What is pandemic?
The ability of a program to produce a desired effect among those who participate in the program compared with those who do not
What is efficacy?
An occurrence of cases of an illness, specific health-related behavior, or other health-related events clearly in excess of normal expectancy in a community or region
What is epidemic?
involves finding and quantifying associations, testing hypotheses, and identifying cause of health-related states or events
The habitat in or on which an infectious agent lives, grows, multiplies, and on which it depends for its survival in nature
What is endemic?
What is an index case?
An object such as a piece of clothing, a door handle, or a utensil that can harbor an infectious agent and is capable of being a means of transmission
What is a fomite?
An infectious organism in vertebrate animals that can be transmitted to humans through direct contact, a fomite, or a vector
What is zoonosis?
An epidemic arising from infections transmitted from one infected person to another
What is propagated epidemic?
The cause of the disease
What is an agent?
A human or animal that is susceptible to the disease
What is host?
What is descriptive epidemiology?
Includes those surroundings & conditions external to the human or animal that cause or allow disease transmission
What is environment?
A person in a population who has been identified as a having a particular disease, disorder, injury, or condition
What is a case?
A behavior, environmental exposure, or inherent human characteristic that is associated with an important health condition
What is risk factor?
Contains, spreads, or harbors an infectious organism
What is a carrier?
A nonliving intermediary such as a fomite, food, or water that conveys the infectious agent from its reservoir to a susceptible host
What is a vehicle?
What is effectiveness?