TABLE 2.
Concordance matrix comparing PCR typing and LAS for 426 GBS clinical isolates from various sources
| Serotype obtained by LAS | No. of strains typed as follows by PCRa:
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ia | Ib | II | III | IV | V | VI | VII | VIII | NT | Total | |
| Ia | 32 | 32 | |||||||||
| Ib | 13 | 13 | |||||||||
| II | 28 | 28 | |||||||||
| III | 189 | 1 | 190 | ||||||||
| IV | 22 | 22 | |||||||||
| V | 1 | 1 | 110 | 112 | |||||||
| VI | 0 | 0 | |||||||||
| VII | 0 | 0 | |||||||||
| VIII | 0 | 0 | |||||||||
| NT | 16 | 1 | 2 | 1 | 2 | (1) | (5) | 1 | 29 | ||
| Total | 48 | 15 | 30 | 190 | 24 | 112 | 1 | 5 | 0 | 1 | 426 |
a
The six strains in parentheses were typed as CpsVI and CpsVII by PCR but were considered NT by LAS because the kit used did not contain the corresponding specific antisera.