Outbreak
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225500690
2008-07-14T00:52:57Z
134.192.58.224
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'''Outbreak''' is a classification used in [[epidemiology]] to describe a small, localized group of people or organisms infected with a disease. Such groups are often confined to a village or a small area. Two linked cases of an infectious disease are usually sufficient to constitute an outbreak. Outbreaks may also refer to [[epidemic]]s, which affect a region in a country or a group of countries, or [[pandemic]]s, which describe global disease outbreaks.
==Outbreak Investigation==<!-- This section is linked from [[Epidemiology]] -->
When investigating disease outbreaks, the epidemiology profession has developed a number of widely accepted steps. As described by the [[Centers for Disease Control and Prevention]], these include the following<ref>[http://www.cdc.gov/excite/classroom/outbreak/steps.htm EXCITE | Epidemiology in the Classroom | Outbreak Steps<!-- Bot generated title -->]</ref>:
* Verify the diagnosis related to the outbreak
* Identify the existence of the outbreak: is the group of ill persons normal for the time of year, geographic area, etc.?
* Create a [[case definition]] to define who/what is included as a case
* Complete [[descriptive epidemiology]]: describe outbreak with respect to time, place, and people
* Develop a hypothesis: what appears to be causing the outbreak?
* Study hypothesis: collect data and perform analysis
* Refine hypothesis and carry out further study
* Develop and implement control and prevention systems
* Release findings to greater community
==Types==
* Common source (Point source)
* Propagated
* Continuous source
* Behavioral risk related
* [[Zoonotic]]
==Notes==
{{Wiktionary}}
<references/>
[[Category:Epidemiology]]
[[es:Brote]]
[[ja:アウトブレイク]]
[[pt:Surto]]