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Correlation among results obtained by amplification of M. pneumoniae DNA, culture, direct antigen test, and serology (immunoblot)
| Group (n) | Materiala | No. (%) of patients positive by:
|
|||||
|---|---|---|---|---|---|---|---|
| NPCR | HPCR | PCR | AGb | Culture | Serology | ||
| I (90) | NPA | 6 | 3 | 3 | 1 | 0 | 3 |
| II (50) | TA | 6 | 6 | 6 | 5 | 4 | 6 |
| III (50) | NPA | 8 | 7 | 6 | 5 | 4 | 8 |
| Total (190) | 20 (11) | 16 (8) | 15 (8) | 11 (6) | 8 (4) | 17 (9) | |
NPA, nasopharyngeal aspirates; TA, tracheal aspirates.
AG, direct antigen test.
