What is
What is Epidemiology?
A field of science that studies health problems within populations
What is the meaning of case ?
set of criteria used in making a decision as to whether an individual has a disease or health event of interest.
What is Vector ?
a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another
What are the Modes of Transmission?
Simplex mode, half duplex, and full duplex
What is a carrier in epidemiology?
A person or animal without apparent disease who harbors a specific pathogen can transmit it to others
What is the portal exit ?
A portal of exit is the site from where micro-organisms leave the host to enter another host and cause disease/infection.
What is a suspect case?
label individuals as suspect, probable, or confirmed cases
What is Reservoir?
Is the population of organisms or the specific environment in which an infectious pathogen naturally lives and reproduces, or upon which the pathogen primarily depends for its survival
What is the indirect transmission?
Transmission of an infection from one person to another through an intermediary agent,
What is a healthy carrier ?
is a person or other organism that has become infected with a pathogen
What is the portal of entry?
manner in which a pathogen enters a susceptible host
What is a primary case?
an only apply to infectious diseases that spread from human to human, and refers to the person who first brings a disease into a group of people a school class, community, or country
What is a passive carrier?
contaminated with the pathogen and can mechanically transmit it to another host
What is the direct transmission?
immediate transfer of the infectious agent from an infected host or reservoir to an appropriate entry point through which human infection can take place.
What is a incubatory carrier?
One who harbors and spreads an infectious organism during the incubation period of a disease before it becomes clinically evident
What is the active primary prevention?
aims to prevent disease or injury before it ever occurs
What is a secondary case?
as the occurring of a disease due to close contacts of a primary case-patient 24 hours after onset of illness in the primary case
What is the biological transmission?
A condition in which the organism that transmits the causative agent of a disease plays an essential role in the life history of a parasite or germ.
What is the convalescent carrier?
One who harbors an infective organism during recovery from the disease caused by the organism
What is a intermittent carrier?
One who harbors an infectious organism
What is the primary prevention ?
activities can ne designed to compliment intervention strategies that are already in place a community
What is a suspect case?
label individuals as suspect, probable, or confirmed cases
What is a mechanical transmission?
The passive transfer of causative agents of disease, by arthropods.
What is a Vehicle-borne transmission?
Indirect transmission of an infectious agent that occurs when a vehicle (or fomite) touches a person's body or is ingested.
What is a Vector-borne transmission?
is one in which transmission of infection in a population (the host population) occurs only via a second population (vectors).