The study of Disease
The study of the cause of a disease (root cause)
The development and mechanisms of a disease
Colonization of the body by pathogens
An abnormal state in which the body is not functioning normally
What is a communicable disease?
A disease that is spread from one host to another
What is a contagious disease?
A disease that is easily spread from one host to another.
Define Incubation period (stages of disease)
No signs or symptoms, when number of microbes are low
Define Prodromal period (stages of disase)
mild signs or symptoms, when microbes are growing
Define Period of Convalescence (stages of disease)
where the person is getting better due to microbes decreasing
Define Subclinical infection
No noticeable signs or asymptomatic
Define Latent infection
No symptoms, because the pathogen is inactive/dormant and does not cause disase
What is direct transmission?
Transmission from human to human OR animal-to-human (zoonotic)
Give one example of a vector for indirect disease transmission?
Malaria via vector of mosquitos
What is vehicle of disease transmission?
Food or water that can transmit the disease
What is fomites of disase transmission?
Inanimate objects that transmit the disease
What are the major routes of transmission?
Respiratory, gastrointestinal, skin-to-skin, bloodborne, mucosal, vertical and nosocomial