| Lab No. | Extraction kita | Extraction method | Real time RT-PCR assayb | Agreement (%) |
| 1 | RNAeasy | Magnetic bead | A | 100 |
| 2 | KINGFISHER | Magnetic bead | A | 100 |
| 3 | -* | - | A | 100 |
| 4 | - | - | A | 100 |
| 5 | Daan gene | Magnetic bead | C | 100 |
| 6 | - | - | A | 100 |
| 7 | - | - | A | 100 |
| 8 | QIAamp | Spin column | A | 100 |
| 9 | - | - | F | 100 |
| 10 | QIAamp | Spin column | A | 100 |
| 11 | PROMEGA | Spin column | A | 100 |
| 12 | - | - | A | 100 |
| 13 | QIAamp | Spin column | A | 100 |
| 14 | - | - | A | 100 |
| 15 | QIAamp | Spin column | B | 100 |
| 16 | QIAamp | Spin column | A | 100 |
| 17 | QIAamp | Spin column | A | 100 |
| 18 | QIAEZ1 | Magnetic bead | D | 100 |
| 19 | - | - | A | 100 |
| 20 | QIAamp | Spin column | A | 100 |
| 21 | ZJ Bio-Tech | Magnetic bead | A | 100 |
| 22 | QIAamp | Spin column | A | 100 |
| 23 | QIAamp | Spin column | A | 100 |
| 24 | - | - | A | 100 |
| 25 | - | - | A | 100 |
| 26 | - | - | A | 100 |
| 27 | QIAamp | Spin column | A | 100 |
| 28 | QIAamp | Spin column | B | 100 |
| 29 | - | - | A | 100 |
| 30 | - | - | A | 100 |
| 31 | High viral RNA | Magnetic bead | A | 100 |
| 32 | QIAamp | Spin column | B | 100 |
| 33 | ZJ Bio-Tech | Magnetic bead | A | 100 |
| 34 | - | - | A | 100 |
| 35 | - | - | A | 100 |