Various Levels of Case Definition - Revision history

Bosmana fem at 22:21, 28 March 2023

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	Probable SARS case: definition for public health surveillance		Probable SARS case: definition for public health surveillance<br>
	A suspect case with radiographic evidence of infiltrates consistent with pneumonia or respiratory distress syndrome (RDS) on chest X-ray (CXR)		A suspect case with radiographic evidence of infiltrates consistent with pneumonia or respiratory distress syndrome (RDS) on chest X-ray (CXR)<br>
	OR		OR<br>
	A suspect case of SARS that is positive for SARS coronavirus by one or more assays.		A suspect case of SARS that is positive for SARS coronavirus by one or more assays.<br>
	OR		OR<br>
	A suspect case with autopsy findings consistent with the pathology of RDS without an identifiable cause.		A suspect case with autopsy findings consistent with the pathology of RDS without an identifiable cause.<br>
	Exclusion criteria: A case should be excluded if an alternative diagnosis can fully explain their illness.		Exclusion criteria: A case should be excluded if an alternative diagnosis can fully explain their illness.<br>

Bosmana fem at 22:19, 28 March 2023

2023-03-28T22:19:08Z

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			Probable SARS case: definition for public health surveillance
			A suspect case with radiographic evidence of infiltrates consistent with pneumonia or respiratory distress syndrome (RDS) on chest X-ray (CXR)
			OR
			A suspect case of SARS that is positive for SARS coronavirus by one or more assays.
			OR
			A suspect case with autopsy findings consistent with the pathology of RDS without an identifiable cause.
			Exclusion criteria: A case should be excluded if an alternative diagnosis can fully explain their illness.


			==FEM PAGE CONTRIBUTORS 2007==
			; Editor
			: Arnold Bosman
			; Contributors
			:Arnold Bosman


	[[Category:Case Definitions]]		[[Category:Case Definitions]]

Bosmana fem at 22:16, 28 March 2023

2023-03-28T22:16:08Z

Bosmana fem at 22:15, 28 March 2023

2023-03-28T22:15:27Z

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			When facing a new disease or when at the beginning of an investigation it is usual to design different level of case definition from very sensitive (suspect case) to very specific (laboratory confirmed case). Usually cases are temporarily classified as suspect until laboratory results are known.

			During an outbreak of botulism in Italy in 2004 two levels of case definition were developed as follows:

			A 'probable botulism case' was defined as:

			- a person who had dined at restaurant A on February 22 or 24, 2004
			and
			- had experienced diplopia, or blurred vision, or fixed/dilated pupils
			and
			- at least one of the following symptoms: dysphagia, dry mouth, dysarthria, upper/lower extremity weakness, dyspnoea, or severe constipation.

			Those who met the probable case definition and had laboratory-confirmed botulism were considered definite cases.



			With the sophistication of laboratory methods and availability of many diagnostic tests for a single disease some case definition may become lengthy and resemble more a complex decision tree as for example the WHO SARS case definition. The following is one of the WHO regularly updated case definition during the SARS epidemic in the west pacific WHO region in 2003.



			Suspect SARS case: definition for public health surveillance

			1. A person presenting after 1 February 2003 with a history of:

			high fever (>38° C);
			AND

			cough, or breathing difficulty
			AND one or more of the following exposures during the 10 days prior to onset of symptoms:
			AND one or more of the following:

			close contact* with a person who is a suspect or probable case of SARS
			history of travel, to an area with recent local transmission of SARS **
			residing in an area with recent local transmission of SARS
			2. A person with an unexplained acute respiratory illness resulting in death after 1 November 2002, but on whom no autopsy has been performed AND one or more of the following
			exposures during to 10 days prior to onset of symptoms:

			close contact, * with a person who is a suspect or probable case of SARS;
			history of travel to an area with recent local transmission of SARS
			residing in an area with recent local transmission of SARS
			* Close contact means having cared for, having lived with, or had direct contact with respiratory secretions or body fluids of a suspect or probable case of SARS.

			** Areas in which there are reported foci of transmission of SARS are updated on the WHO website (http://www.who.int/csr/sarsareas/en/). Current areas (1 April 2003) with reported
			foci of transmission are:




	[[Category:Case Definitions]]		[[Category:Case Definitions]]

Bosmana fem: Created page with " Category:Case Definitions"

2023-03-22T22:00:41Z

Created page with " Category:Case Definitions"

New page

[[Category:Case Definitions]]

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	Suspect SARS case: definition for public health surveillance		Suspect SARS case: definition for public health surveillance

	1. A person presenting after 1 February 2003 with a history of:		1. A person presenting after 1 February 2003 with a history of:

	high fever (>38° C);		high fever (>38° C);
	AND		AND

	cough, or breathing difficulty		cough, or breathing difficulty
	AND one or more of the following exposures during the 10 days prior to onset of symptoms:		AND one or more of the following exposures during the 10 days prior to onset of symptoms:
	AND one or more of the following:		AND one or more of the following:

	close contact* with a person who is a suspect or probable case of SARS		close contact* with a person who is a suspect or probable case of SARS
	history of travel, to an area with recent local transmission of SARS **		history of travel, to an area with recent local transmission of SARS **
Line 35:		Line 31:
	2. A person with an unexplained acute respiratory illness resulting in death after 1 November 2002, but on whom no autopsy has been performed AND one or more of the following		2. A person with an unexplained acute respiratory illness resulting in death after 1 November 2002, but on whom no autopsy has been performed AND one or more of the following
	exposures during to 10 days prior to onset of symptoms:		exposures during to 10 days prior to onset of symptoms:

	close contact, * with a person who is a suspect or probable case of SARS;		close contact, * with a person who is a suspect or probable case of SARS;
	history of travel to an area with recent local transmission of SARS		history of travel to an area with recent local transmission of SARS
	residing in an area with recent local transmission of SARS		residing in an area with recent local transmission of SARS
	* Close contact means having cared for, having lived with, or had direct contact with respiratory secretions or body fluids of a suspect or probable case of SARS.		* Close contact means having cared for, having lived with, or had direct contact with respiratory secretions or body fluids of a suspect or probable case of SARS.

	** Areas in which there are reported foci of transmission of SARS are updated on the WHO website (http://www.who.int/csr/sarsareas/en/). Current areas (1 April 2003) with reported		** Areas in which there are reported foci of transmission of SARS are updated on the WHO website (http://www.who.int/csr/sarsareas/en/). Current areas (1 April 2003) with reported
	foci of transmission are:		foci of transmission are: