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Hepatitis A - eu "case" definice


HEPATITIS A
(Hepatitis A Virus)


Clinical Criteria
Any person with a discrete onset of symptoms (e.g. fatigue, abdominal pain, loss of appetite,
intermittent nausea and vomiting)
AND
At least one of the following three:
– Fever
– Jaundice
– Elevated serum aminotransferase levels


Laboratory Criteria
At least one of the following three:
– Detection of hepatitis A virus nucleic acid in serum or stool
– Hepatitis A virus specific antibody response
– Detection of hepatitis A virus antigen in stool


Epidemiological Criteria
At least one of the following four:
– Human to human transmission
– Exposure to a common source
– Exposure to contaminated food / drinking water
– Environmental exposure


Case Classification
A. Possible case NA
B. Probable case
Any person meeting the clinical criteria and with an epidemiological link
C. Confirmed case
Any person meeting the clinical and the laboratory criteria

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