Lesson 15 Flashcards
Condition in which the agent may exist, survive, or originate
Environment
Components of the environment
Physical
Biological
Socioeconomic
Any organism capable of producing disease
Causative agent
It is the ‘habitat’ in which the agent normally lives, grows, and multiplies
Reservoir
A ‘person with inapparent infection’ who is capable of transmitting disease
Carrier
Those who never experience symptoms despite being infected
Asymptomatic
Those who can transmit the agent during the incubation period before clinical illness begins
Incubators Carriers
Those who have ‘recovered’ from the illness but remain capable of transmitting to others
Covalescent carriers
Those who continue to harbor pathogen such as hepatitis B and salmonella typhu
Chronic careiers
People who are aware their illness
Symptomatic persons
Refers to an infectious disease that is transmission under natural condition from vertebrae animals to humans
Zoonosis
The path by which a ‘pathogen leaves a host’
Portal of exit
May be transmitted from its natural reservoir to a susceptible host in different ways
Mode of Transmission
Occurs through skin to skin contact, kissing, and sexual intercourse
Direct contact
Refers to SPRAY with relatively large, short range aerosols produced by sneezing
Droplet spread
