epidemiology Flashcards
disease prevalence
the proportion or percentage of diseased
disease incidence
the actual number of people who have the disease
epidemic
when a disease occurs in a very high number of people
pandemic
wide spread
sporadic
geographically separated areas
outbreak
when it occurs in a short period of time where sporadic was
mortality
the measure of death
morbidity
measure of the incidence of death
what is a reservoir?
a see where infections microogamiums are alive
fomite
an inanimate object and depends solely on the human host for completion of its cycle
how do infectious diseases transfer?
direct or indirect or vehicles and vectors
what are the 3 stages for a pathogen o survive transmission
- escape the host
- travel
- entry into a new host
what are some factors to consider in the host community
- co evolution of the host and parasite
- heird immunity (protection of immune– chicken pox)
- hospital acuired infections
- exposure oppertunies- increased rick in hospitals
what is bad about the hospital envrionment?
chain of transmission and the hosts are compromised bc they are sick (weak immune systems)
what are the two ways to control disease?
- immunization
2. quarantine
