historical figures & basic vocab Flashcards
learn them
analyzed mortality rates, quantifies patterns of disease & disease occurance
John Gaunt
studied scurvy using control groups
James Lind
father of vital statistics & surveillance, developed basic processes for statistics
William Farr
daddy of epidemiology, studied cholera in london
John Snow
recognizes bacteria can cause disease, ‘developed the small pox vaccine’
Louis Pasteur
postulates to identify organisms as infectious
Robert Koch
recognized that pellagra had a dietary origin
John Goldberger
had a statistical procedure for stratified analysis of case control studies
Mantel & Hanenszel
first to have an epidemiological text with a systematical focus on study design
MacMahon
public health statistician that led to behaviour being a potential risk factor in epidemiology
Edward Sydenstricker
the constant presence and/or usual prevalence of a disease or infectious agent in a population within a geographic area.
endemic
an unexpected increase in disease but is often used for a more limited geographic area.
outbreak
an increase, often sudden, in the number of cases of a disease above what is normally expected in that population in that area.
epidemic
an epidemic that has spread over several countries or continents, usually affecting a large number of people.
pandemic
an aggregation of cases grouped in place and time that are suspected to be greater than the number expected, even though the expected number may not be known.
cluster
a disease that occurs infrequently and irregularly
sporadic
a high enough proportion of individuals in a population are resistant to an agent, then those few who are susceptible will be protected by the resistant majority since the pathogen will be unlikely to “find” those few susceptible individuals.
herd immunity
a comparison of two values with different units of measurement ex: apples eaten:day
rate
objects or materials which are likely to carry infection, such as clothes, utensils, and furniture
fomite
the time interval between when an individual or host is infected by a pathogen and when they become infectious
latency period
the likelihood that an agent will infect a host, given that the host is exposed to the agent
infectivity
the likelihood of causing severe disease among those with disease
virulence
a comparison between two values with similar units ex: apples:oranges
ratio
a disease which can be transmitted to humans from animals
zoonosis