Cryptosporidiosis (Cryptosporidium parvum, hominis)

Clinical criteria
Any person with at least one of the following two:
- Diarrhoea
- Abdominal pain

Laboratory criteria
At least one of the following four:
- Demonstration of Cryptosporidium oocysts in stool
- Demonstration of Cryptosporidium in intestinal fluid or small-bowel biopsy specimens
- Detection of Cryptosporidium nucleic acid in stool
- Detection of Cryptosporidium antigen in stool

Epidemiological criteria
At least one of the following two:
- Human to human transmission
- Exposure to a common source

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 

Current as of: 22 January 2019