| Test | PCR | ||||||
| +ve | −ve | Total | |||||
| Culture |
| NO. | % | NO. | % | NO. | % |
| +ve | 2 | 66.7 | 0 | 0 | 2 | 1.3 | |
| −ve | 1 | 33.3 | 147 | 100 | 148 | 98.7 | |
| Total | 3 | 100 | 147 | 100 | 150 | 100 | |