Chain of Infection
A person or animal who is prone to the disease.
What is a host?
A contagious disease caused by the variola virus; characterized by high fever and skin rash.
What is smallpox?
Requires physical contact between an infected host and a susceptible person.
What is a direct transmission?
An individual who has a pathogen in their system for an extended period of time, even though they have recovered from the disease.
What is an active carrier?
Does not require action by an individual for protection to occur.
What is passive primary prevention?
The microorganism that causes the disease.
What is an agent?
A disease caused by swollen and bleeding gums, extreme weakness, and bruising.
What is scurvy?
Inhalation of infectious droplets or dust particles suspended in the air.
What is an airborne transmission?
A person who has been infected with a pathogen but does not show or experience any symptoms of the disease.
What is a healthy carrier?
Prevent disease or injury before it occurs.
What is primary prevention?
The methods by which an infectious agent can be passed from one person, animal, or object to another.
What is the mode of transmission?
A bacterial disease that causes persistent fever, constipation, and rose-colored spots on the chest and abdomen.
What is typhoid fever?
Transmitted through the bite of infected invertebrate animals.
What is vector-borne transmission?
One who harbors infectious organisms in different places or at different intervals
What is an intermittent carrier?
Attempts to detect a disease and prevent it from progressing into an impairment or disability.
What is secondary prevention?
A site where a pathogen enters the body of a susceptible host and causes disease.
What is a portal of entry?
An infectious disease that causes severe diarrhea and dehydration.
What is cholera?
The pathogen multiplies within a biological vector, which spreads the pathogen from one host to another.
What is a biological transmission?
An individual capable of transmitting an infectious agent to others during the early stages of the disease.
What is an incubatory carrier?
This can help restore and improve physical, mental, and cognitive abilities.
What is rehabilitation?
The environment in which the agent normally lives, grows, and reproduces.
What is a reservoir?
After-birth infection, usually of the placental site within the uterus.
What is childbed fever?
Indirectly transferred from a reservoir to another host by inanimate objects.
What is a vehicle-borne transmission?
Someone who is in the recovery phase of the disease but still capable of infecting others
What is a convalescent carrier?
When a disease or disorder has already occurred, rehabilitation and excessive care are required.
What is tertiary prevention?