Concept of Epidemiology
The study of the distribution and determinants of health-related states or events in human populations and the application of this study to the prevention and control of health problems.
What is Epidemiology?
The occurrence of cases of an illness, specific health-related behavior, or other health related events in excess of normal expectancy in a community or region.
What is an Epidemic?
The first disease case in the population.
An invertebrate animal that transmit infections by conveying the infectious agent from one host to another.
What is a Vector?
What is Airborne transmission?
A specific event, condition, or characteristic that precedes the health outcome and is necessary for its occurrence
What is a cause?
An epidemic that affects or attacks the population of an extensive region, country, or continent.
What is a Pandemic?
The first disease case brought to the attention of the epidemiologist.
What is a Index Case?
An inanimate object that can harbor an infectious agent and is capable of being a means of transmission.
What is a Fomite?
The uninterrupted and immediate transfer of an infectious agent.
What is a Direct transmission?
A behavioral, environmental exposure, or inherent human characteristics that increases the chance of developing and adverse health outcome.
What is a Risk Factor?
The outgoing, usual, or constant presence of a disease in a community among a group of people.
What is a Endemic?
The measurement of an illness.
What is Case severity?
An infectious organism that contains, spreads, and harbors.
What is a Carrier?
An agent is transferred or carried by some intermediate item, organism, means, or process to a host.
What is an Indirect transmission?
What is Descriptive Epidemiology?
A specific source epidemic.
What is a Common-source epidemic?
A group or individual who has all signs and symptoms of a disease or condition but has not been diagnosed as having the disease or has the symptoms connected to a suspected pathogen.
What is a Suspect case?
A nonliving intermediary that conveys the infectious agent from its reservoir to a host.
What is a Vehicle?
An arthropod conveying the infectious agent.
The finding and quantifying causes of health-related states or events.
What is Analytic Epidemiology?
When infectious diseases are transmitted from one infected person to another.
What is a Propagated epidemic?
A person who becomes infected and ill after a disease has been introduced into a population and who is infected as a result of contact with the primary case.
What is a Secondary Case?
An infectious organism in vertebrate animals that can be transmitted to humans through direct contact, fomite or vector.
What is a Zoonosis?
The change of lifecycle of a pathogen within a host before being transmitted to a new host.
What is a Biological transmission?