Criteria
Case definitions for cryptosporidiosis[84]
Laboratory-confirmed cryptosporidiosis is defined as the detection of a member of the genus Cryptosporidium by 1 of the following methods:
Organisms in stool, intestinal fluid, tissue samples, or biopsy specimens
Antigens in stool or intestinal fluid
Nucleic acid by polymerase chain reaction in stool, intestinal fluid, tissue samples, biopsy specimens or sputum.
Where laboratory diagnosis is by immunochromatographic card/rapid card test, the diagnosis is considered probable; immunochromatographic card tests and enzyme immunoassay may be confirmed by staining and microscopy, according to local practice.
Cases can be classified as follows.
Confirmed: a case that meets the clinical description and at least 1 of the criteria for laboratory confirmation as described above. When available, species designation and molecular characterization should be reported.
Probable: a case that meets the clinical description and that is epidemiologically linked to a confirmed case.
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