Short quiz Flashcards
incubation period
from the moment you get to disease to the moment you experience your first symptom
when are you most infectious?
towards the end of your sickness
latent period
can’t tell when your sick; no symptoms
symptomatic
person has disease and has symptoms
asymptomatic
person has disease but never develops symptoms
pre-symptomatic
person has disease and doesnt show symptoms, but eventually develops them
Immunity
capacity of a person when exposed to an infectious agent to remain free of infection
herd immunity
immunity in group
- resistance of group to invasion and spread of an infectous agent
- resistance is a product of the number of susceptibles and the probilibilt that those who are susceptible will come into contract with infected person
what is pathogenicity
degree to which the agent is able to multiply and disease the host
charactertics of agents
- infectivity
- pathogenicity
- virulence
what is infectivity
- ability of thr agent to enter, develop, multiple in a host
- function of both the agent and the enviornment required by agent
What is virulence?
- degree of pathogenicity of an agent
- extent of damage to the host by the agent
whats an example of an agent?
virus, bacteria, pathogen, etc.
Classic Epidmiology Triangle
- Agent
- Environment
- Host
Agent Factors
- ability to spead
- ability to induce infection
- ability to produce disease
