Table 3. Enteric pathogen records from included US and Canadian studies (1990–2013) (n = 102); record number, percentage of total records, record number with specified pathogen present, percentage of records with specified pathogen present.
| Pathogen included in study | N | % | Presence of pathogen | |
| N | % | |||
| Bacteria | ||||
| VTEC1 (O157) | 5 | 4.9 | 3 | 60 |
| Salmonella spp. | 5 | 4.9 | 4 | 80 |
| EPEC2 (non O157) | 4 | 3.9 | 4 | 100 |
| Campylobacter jejuni | 4 | 3.9 | 2 | 50 |
| Arcobacter spp. | 1 | 1 | 1 | 100 |
| Shigella spp. | 1 | 1 | 0 | 0 |
| Helicobacter spp. | 1 | 1 | 1 | 100 |
| Leptospira spp. | 1 | 1 | 0 | 0 |
| Yersinia spp. | 1 | 1 | 1 | 100 |
| Protozoa | ||||
| Cryptosporidium spp. | 9 | 8.8 | 6 | 66.7 |
| Giardia spp. | 10 | 9.8 | 3 | 30 |
| Naegleria fowleri | 1 | 1 | 1 | 100 |
| Virus | ||||
| Enterovirus | 14 | 13.7 | 14 | 100 |
| Norovirus | 12 | 11.8 | 9 | 75 |
| Hepatitis A (HAV) | 8 | 7.8 | 7 | 87.5 |
| Rotavirus | 7 | 6.9 | 4 | 57.1 |
| Adenovirus | 6 | 5.9 | 5 | 83.3 |
| Human Enteric Viruses | 5 | 4.9 | 3 | 60 |
| Total Culturable Viruses | 4 | 3.9 | 3 | 75 |
| Reovirus | 2 | 2 | 2 | 100 |
| SRSV3 | 1 | 1 | 1 | 100 |
| Total | 102 | 100 | 74 | 72.5 |
1
Vero-toxigenic Escherichia coli.
2
Enteropathogenic Escherichia coli.
3
Small Round Structured Viruses.