Table 1.
Characteristics of patients, infecting isolates and Stx protein concentrations in stools.
| Profiles of Patients | Profiles of E. coli Isolated from Stool *,1 | Stx Protein Concentration in Stool (ng/mL) | ||||||
|---|---|---|---|---|---|---|---|---|
| Patient ID | Sex | Age Group (years old) | Symptoms | Serotype | Stx1 Gene | Stx2 Gene | Stx1 | Stx2 |
| No. 1 | Female | 20–29 | Bloody diarrhea, Abdominal pains, Vomit | O157:H7 | + | - | 10.44 | 2.75 |
| O157:H7 | + | + | ||||||
| O111:H8 | - | - | ||||||
| No. 2 | Female | 40–49 | Bloody diarrhea, Abdominal pains, HUS | O111:H8 | - | - | U.D. *,2 | U.D. *,2 |
| No. 3 | Male | 10–19 | Diarrhea, Abdominal pains, HUS | O157:H7 | + | + | 1.71 | 51.61 |
| O111:H8 | - | + | ||||||
| O111:H8 | - | - | ||||||
| No. 4 *,3 | Male | 20–29 | Bloody diarrhea, Abdominal pain, Vomit | N.D. *,4 | n.d. *,5 | n.d. *,5 | 0.71 | U.D. *,2 |
| No. 5 | Female | 0–9 | Bloody diarrhea, Abdominal pains, HUS | O157:H7 | + | + | U.D. *,2 | U.D. *,2 |
| O111:H8 | - | + | ||||||
| O111:H8 | - | - | ||||||
| No. 6 | Male | 10–19 | Bloody diarrhea, Abdominal pains | O111:H8 | - | + | U.D. *,2 | 12.88 |
| No. 7 | Female | 10–19 | Bloody diarrhea, Abdominal pains, Vomit | O157:H7 | + | + | 0.71 | 3.22 |
| O111:H8 | - | + | ||||||
| O111:H8 | - | - | ||||||
| No. 8 | Male | 30–39 | Bloody diarrhea | O111:H8 | - | - | U.D. *,2 | U.D. *,2 |
| No. 9 | Female | 20–29 | Diarrhea, Abdominal pains, Vomit, HUS, AE | N.D. *,4 | n.d. *,5 | n.d. *,5 | U.D. *,2 | U.D. *,2 |
*,1 Isolation and analysis of E. coli were performed as elaborated in our previous reports [1,2,3]. All the Stx1 and Stx2 from both the EHEC O111 and O157 isolates in this outbreak were subtype Stx1a and Stx2a, respectively [3]; *,2 Undetectable: Stx protein could not be detected; *,3 Patient No. 4 required dialysis treatment; *,4 Not detected: E. coli isolate had not been isolated from stool. *,5 Not determined: stx gene profile did not be examined because no E. coli was isolated.