Table 2. Detection results in samples collected on different dates.
| Sample type | Sample collection date | Time interval for the first onset of clinical symptoms of patients | Sample name | Sample number | Real-time PCR positive rate for C. coli | C. coli culture positive rate | HuSaV GI positive number | C. coli and HuSaV GI positive number | Number of unqualified samples for aerobic plate counting | Number of unqualified samples for coliform detection |
| Note: “−” means not applicable. Abbreviation: HuSaV=human sapovirus; WSW=water source well; WSS-H=secondary water supply system for hotel; WSS-S=secondary water supply system for school. | ||||||||||
| Patients | D6 | D3−D6 | Anal swab | 19 | 11 | 1 | 0 | 0 | − | − |
| D12 | D3−D11 | Anal swab | 15 | 10 | 4 | 7 | 6 | − | − | |
| D13 | D4−D12 | Stool | 24 | 11 | 5 | 17 | 8 | − | − | |
| D14 | D4−D12 | Stool | 25 | 17 | 6 | 15 | 13 | − | − | |
| Canteen workers | D6 | − | Anal swab | 5 | 0 | 0 | 0 | 0 | − | − |
| Retained food | D6 | − | Food | 12 | 0 | 0 | 0 | 0 | − | − |
| Environment smear | D6 | − | Smear | 17 | 2 | 0 | 0 | 0 | − | − |
| Water | D6 | − | WSW | 1 | − | − | − | − | 0 | 0 |
| − | WSS-H | 1 | − | − | − | − | 0 | 0 | ||
| − | WSS-S | 5 | − | − | − | − | 5 | 5 | ||
| D12−D14 | − | WSS-H | 3 | − | − | − | − | 0 | 0 | |
| − | WSS-S | 8 | − | − | − | − | 8 | 8 | ||