Vocab Week 3

Medical Microbiology

localized

restricted to a part of the body

systemic

disseminated throughout the body

sepsis

systemic inflammation due to infection

infectious dose

number of microbes necessary to establish infection

attack rate

percentage of people who become ill in a population after exposure to infective agent

incidence

fraction of population that contracts a disease during a specific time

prevalence

fraction of a population having a specific disease at a given time

sporadic

disease that occurs occasionally in a population

endemic

disease constantly present in a population

epidemic

disease acquired by many hosts in a given area in a short time

pandemic

worldwide epidemic

morbidity

the prevalence of any illness in a population

mortality

overall death rate in a population

case-fatality rate

percentage of population that dies from a specific disease

propagation

spreading to other hosts

case-control study

select outcomes, investigate exposure; association

cross-sectional study

assess both exposure and outcomes; prevalence

cohort study

select exposure, investigate outcomes; incidence