Table 4. Sample information.
| Sample size | TI1st/HI1st (one day) |
TI2nd (six months) |
TI3rd (ten months) |
Total | |
|---|---|---|---|---|---|
| Tibetan fecal samples | 30 | 30 | 30 | 90 | |
| Han fecal samples | 29 | 0 | 0 | 29 | |
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