Epidemiology and GI disease- public health Flashcards Preview

GI > Epidemiology and GI disease- public health > Flashcards

Flashcards in Epidemiology and GI disease- public health Deck (13):
1

What is epidemiology?

The study of how often diseases occur in different groups of people and why.

2

What is incidence rate?

The number of new cases of a disease occurring in a population during a specific period of time divided by the number of persons exposed to risk of developing the disease during that time. Usually expressed per 1000.

3

What is the prevalence rate of a disease?

The number of cases of a disease present in a population at a specific point in time divided by the number of persons at risk of having the disease at that point in time.

4

What is an endemic disease?

a disease that is found in a specific geographic region or a specific race of people.

5

What is an epidemic disease?

Epidemic describes a disease that is widespread, affecting an atypically large number of individuals within a population, community, or region at the same time.

6

What is a pandemic disease?
What is the difference between a pandemic and an epidemic?

a pandemic covers a much wider geographical area, often worldwide. A pandemic also infects many more people than an epidemic. An epidemic is specific to one city, region or country, while a pandemic goes much further than national borders.

7

What does morbidity mean?

The rate of illness

8

What does mortality mean?

The rate of death

9

What is a zoonosis?
Give examples

a disease, primarily of animals, that is occasionally transmitted to humans
Examples: avian and swine flu

10

What is a reservoir, in the context of infectious diseases?

A source of viable infectious agents from which individuals may be infected.

11

What is a vector?

An agent (usually insect or animal) able to carry pathogens from one host to another

12

What is a vehicle, in the context of infectious diseases?

A non-living source of pathogens that infect large numbers of individuals (food, water, etc)

13

Which GI condition is there screening for?

Colorectal cancer
Sreening is bi-annually from the age of 50

Decks in GI Class (59):