TABLE 3.
Organisms identified by conventional methods in the historical control populationa
| Organismb | No. of historical controls positive/no. tested (n = 594) |
|---|---|
| EPEC | NT |
| Norovirus genotype I/II | NT |
| Rotavirus A | 0/27 |
| Sapovirus | NT |
| Salmonella spp. | 20/594 |
| Giardia lamblia | 1/146 |
| Campylobacter spp. | 7/594 |
| Shigella/EIEC | 3/594 |
| ETEC | NT |
| Adenovirus F40/41 | NT |
| Vibrio spp. | 1/27 |
| EAEC | NT |
| Astrovirus | NT |
| Escherichia coli O157 | 0/41 |
| Yersinia enterocolitica | 0/46 |
| STEC (Stx1/Stx2) | 1/41 |
| Plesiomonas shigelloides | 0/594 |
| Cyclospora cayetanensis | 0/28 |
| Cryptosporidium species | 3/146 |
| Entamoeba histolytica | 0/274 |
| Aeromonas hydrophila | 2/594 |
| Overall positivity rate (%) | 6.7 |
a
A total of 594 samples were tested, and 40 (6.7%) were positive for a total of 41 organisms. NT, not tested.
b
EPEC, enteropathogenic E. coli; EIEC, enteroinvasive E. coli; ETEC, enterotoxigenic E. coli; EAEC, enteroaggregative E. coli; STEC, Shiga toxin-producing E. coli.