Tularemia (Francisella tularensis)
1990 Case Definition
Tularemia (Francisella tularensis)
1990 Case Definition
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1990 Case Definition
Clinical Description
An illness characterized by several distinct forms, including:
- Ulceroglandular: cutaneous ulcer with regional lymphadenopathy
- Glandular: regional lymphadenopathy with no ulcer
- Oculoglandular: conjunctivitis with preauricular lymphadenopathy
- Intestinal: pharyngitis, intestinal pain, vomiting, and diarrhea
- Pneumonic: primary pleuropulmonary disease
- Typhoidal: febrile illness without early localizing signs and symptoms
Clinical diagnosis is supported by evidence or history of a tick or deerfly bite, exposure to tissues of a mammalian host of Francisella tularensis, or exposure to potentially contaminated water.
Laboratory Criteria For Diagnosis
- Isolation of F. tularensis from a clinical specimen, OR
- Demonstration of F. tularensis in a clinical specimen by immunofluorescence, OR
- Fourfold or greater rise in agglutination titer between acute- and convalescent-phase serum specimens obtained greater than or equal to 2 weeks apart, analyzed at the same time, and in the same laboratory
Case Classification
Probable
A clinically compatible case with supportive serologic results (tularemia agglutination titer of greater than or equal to 160 in one or more serum specimens obtained after onset of symptoms)
Confirmed
A case that is laboratory confirmed
Related Case Definition(s)
Last Reviewed: April 16, 2021