Chapter 10 Flashcards
What is epidemiology?
The occurrence, spread and control of diseases
What is an infection?
The presence of an infectious organism in an individual or population
What is a disease?
A detectable clinical consequence of infection
What is incubation time?
The time interval between exposure to infection and appearance of disease
What does it mean to be infectious?
When an infected person is capable of transmitting the infection to others
What are symptoms?
What a patient feels (pain and malaise)
Subjective and can change
What is a sign?
An objective and concrete thing that can be measured through direct observation
What does it mean when a disease is communicable? What are some examples?
It can be spread from one individual to other directly or indirectly.
Gonorrhea, chickenpox, measles, mumps
What does it mean when a disease is contagious? What are some examples?
It is easily spread.
Chickenpox, measles
What is an example of a non-communicable disease?
Tetanus
What are the time periods of an infection?
Susceptible, latent period, infectious period and non-infectious period (left body)
What is generation time?
The latent period and the infectious period
What are the time periods for infectious diseases?
Susceptible, incubation period (no signs or symptoms), symptomatic period and non-disease period
What is an endemic disease?
A disease that exists in a population, happens in low numbers but happens all the time. In certain areas.
What is a sporadic disease?
When a disease does not generally occur in this area
