TABLE 1.
Adherence of S. pneumoniae to Detroit 562 cells
| S. pneumoniae serotype | Strain | Inoculum size (CFU/well) | Mean adherence [CFU/well (CV)]c | Phenotype | Source and/or reference |
|---|---|---|---|---|---|
| 2 | D39 | 105 | 155 (3)* | Mixed | 4 |
| 2 | PsaA− | 106 | 29 (72) | Intermediate | 4 |
| 4 | 0215-95 | 104 | 6 (72) | Opaque | Blood (26) |
| 6A | 3666 | 104 | 189 (25)* | Transparent | NPd |
| 6B | DS2212-94 | 104 | 13 (66) | Opaque | Blood (26) |
| 9V | P64 | 105 | 217 (21)* | Transparent | 17 |
| 18C | SP116 | 104 | 4 (70) | Opaque | SSIa |
| 18C | P73 | 105 | 114 (18)* | Transparent | 17 |
| 19A | 91/6571 | 104 | 276 (8)* | Mixed | CDCb |
| 19F | 6133 | 104 | 169 (19)* | Transparent | NPd |
| 23F | SP264 | 104 | 475 (11)* | Intermediate | 10 |
| 23F | 3476 | 103 | 133 (19)* | Mixed | NPd |
a
SSI, Statens Seruminstitut, Denmark (source unknown).
b
Multidrug-resistant strain originally reported by Steve McDougal and currently available at the Streptococcal Reference Laboratory, CDC, Atlanta, Ga.
c
An asterisk designates the percent coefficient of variance (CV) for adherent serotypes (mean CV = 16).
d
O’Brien et al., Abstr. 70th Annu. Meet. Soc. Pediatr. Res. 2001.