Date of last revision/review: May 2008
Only confirmed cases of disease should be notified.
Type of surveillance
Routine case-by-case notification to the federal level.
Laboratory confirmation of infection with symptoms:
- isolation of Listeria monocytogenes from a normally sterile site (e.g. blood, cerebral spinal fluid, joint, pleural or pericardial fluid)
- in the setting of miscarriage or stillbirth, isolation of L. monocytogenes from placental or fetal tissue (including amniotic fluid and meconium)
Invasive clinical illness is characterized by meningitis or bacteremia. Infection during pregnancy may result in fetal loss through miscarriage, stillbirth, neonatal meningitis or bacteremia.
A32 Listeriosis (includes listerial foodborne infection; excludes neonatal (disseminated) listeriosis P37.2)
A32.1 Listerial meningitis and meningoencephalitis (Listerial: meningitis (G01); meningoencephalitis (G05.0)
A32.7 Listerial septicaemia
A32.8 Other forms of listeriosis (Listerial: cerebral arteritis (I68.1); endocarditis (I39.8), Oculoglandular listeriosis)
A32.9 Listeriosis, unspecified
027.0 Listeriosis (excluding congenital listeriosis (771.2))
Infection by Listeria monocytogenes
Septicemia by Listeria monocytogenes
Use additional code to identify manifestations, as meningitis (320.7)
Probable case definitions are provided as guidelines to assist with case finding and public health management, and are not for national notification purposes.
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