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Mumps
1999 Case Definition
Clinical case definition
An illness with acute onset of unilateral or bilateral
tender, self-limited swelling of the paraotid or other salivary
gland, lasting greater than or equal to 2 days, and without other
apparent cause
Laboratory criteria for diagnosis
- Isolation of mumps virus from clinical specimen,
or
- Significant rise between acute- and convalescent-phase
titers in serum mumps immunoglobulin G (IgG) antibody level
by any standard serologic assay, or
- Positive serologic test for mumps immunoglobulin
M (IgM) antibody
Case classification
Probable: a case
that meets the clinical case definition, has noncontributory
or no serologic or virologic testing, and is not epidemiologically
linked to a confirmed or probable case.
Confirmed: a case that is laboratory confirmed
or that meets the clinical case definition and is epidemiologically
linked to a confirmed or probable case. A laboratory-confirmed
case does not need to meet the clinical case definition.
See also:
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