An organism or substance such as bacteria, viruses, fungi, mold, or parasites that is capable of producing disease.
What is a Pathogen?
An individual who has been exposed to and harbors a pathogen and who can spread the disease at different places or intervals.
What is an Intermittent Carrier?
The transfer of a disease to a human by a vector.
What is Vector-Borne Transmission?
The effort to prevent a disease or disorder before it happens.
What is a Primary Case?
The place where pathogens or other disease-causing agents enter the body of a susceptible host.
What is the Portal of Entry?
An individual who has been exposed to an harbors a pathogen but has not become ill or shown any symptoms of the disease.
What is a Healthy or Passive Carrier?
The transfer of a disease via a particular vehicle.
What is Vehicle-Borne Transmission?
The efforts to limit disability by providing rehabilitation where disease, injury, or a disorder has already occurred and caused damage.
A person in a population who has been identified as having a particular disease, disorder, injury, or condition.
What is a Case?
What is the Portal of Exit?
An individual who has been exposed to and harbors a pathogen, and has done so for some time, even though they may have recovered from the disease.
What is an Active Carrier?
The process of spreading disease through a physical transfer process.
What is Mechanical Transmission?
It does not require behavior change on the part of the individual to prevent disease or disorder from occurring.
What is Passive Primary Prevention?
A person who becomes infected from contact with the primary case after the disease has been introduced into the population.
What is a Secondary Case?
The process through which infectious disease transmission occurs.
What is the Chain of Infection?
An individual who has been exposed to and harbors a pathogen; who is beginning to show symptoms and is in the beginning stages of the disease; who still has the ability to transmit the disease.
What is an Incubatory Carrier?
The transfer of bacteria or viruses on dust particles or on small respiratory droplets that may become aerosolized when individuals sneeze, cough, laugh, or exhale.
What is Airborne Transmission?
The activities aimed at health screening and early detection to improve the likelihood of cure and reduce the chance of disability or death.
What is Secondary Prevention?
An individual or group who have all the signs and symptoms of a disease or condition but have not been diagnosed as having the disease or had the cause of the symptoms connected to a suspected pathogen.
What is Suspect Case?
An infected person or animal that contains, spreads, or harbors an infectious organism.
What is a Carrier?
An individual who harbors a pathogen and who is still infectious even though they are in the recovery phase of the course of the disease.
What is a Convalescent Carrier?
The process in which a pathogen reproduces and transfers to a susceptible host by a vector.
What is Biological Transmission?
What is Active Primary Prevention?
The first disease case brought to the attention of the epidemiologist.