Source: World Health Organization
(WHO)
Case
Definitions
A suspected
case of pandemic (H1N1) 2009 virus infection is defined
as an individual with acute respiratory illness and fever
(reported or documented fever), and one of the followings;
cough, sore throat, shortness of breath, difficulty in
breathing or chest pains with onset:
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Within
7 days of close contact with a person who is probable
or confirmed case of pandemic (H1N1) 2009 virus infection
OR
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Within 7 days of travel to a country/community where
there has been one or more confirmed cases of pandemic
(H1N1) 2009 virus infection OR
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Resides in a community where there is one or more confirmed cases of pandemic (H1N1) 2009 virus infection.
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Probable case of pandemic (H1N1) 2009
A probable case of pandemic (H1N1) 2009
virus infection is defined as an individual with an influenza
like illness who is positive for influenza A that is un-subtypeable
by real time PCR.
OR
An individual with a clinically compatible
illness or who died of an unexplained acute respiratory
illness who is considered to be epidemiologically linked
to a probable or confirmed case.
Confirmed Case of pandemic (H1N1) 2009
A confirmed case of pandemic (H1N1) 2009 virus infection is defined as an individual with an influenza like illness with laboratory confirmed pandemic (H1N1) 2009 virus infection by one or more of the following test:
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Real time RT-PCR
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Viral Culture
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Four-
fold rise in pandemic (H1N1) 2009 virus specific neutralizing
antibodies.
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Compiled
by: Epidemic Investigation Cell (EIC), Public
Health Laboratories Division (PHLD)
National
Institute of Health (NIH), Islamabad
Tel:
051-9255237, Fax: 051-9255575
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