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Number of positive cases which detected from different specimens.
| Specimen type | Total number of specimens | Number of positive specimens | ||
|---|---|---|---|---|
| Culture only | End-point PCR only | Culture and end-point PCR | ||
| Nasopharyngeal aspirate | 521 | 3 | 207 | 3 |
| Nasopharyngeal swab | 149 | 0 | 50 | 3 |
| Tracheal aspirate | 7 | 0 | 2 | 0 |
| Throat swab | 14 | 1 | 1 | 0 |
| Pernasal swab | 15 | 0 | 5 | 0 |
| Endotracheal tube swab | 1 | 0 | 0 | 0 |
