TABLE 1.
Distribution of pattern 2723, as determined by D8635-primed PCR, among 420 N. meningitidis strains isolated in Belgium between 1990 and 1995, 20 Dutch isolates, and 30 reference strains
| Strain and phenotypea | No. of strains with the following D8635-primed PCR DNA amplification pattern:
|
|||||
|---|---|---|---|---|---|---|
| Pattern 2723
|
Other patterns | |||||
| Pattern 2723b | Absence of one band | Presence of an additional band | Difference in density of one band | Absence of one band and difference in density of one band | ||
| Belgian isolates | ||||||
| B:4:P1.4 | 112 | 14 | 6 | 9 | 0 | 0 |
| B:NT:P1.4 | 12 | 2 | 0 | 1 | 0 | 1 |
| B:4:P1.13 | 15 | 3 | 0 | 3 | 0 | 1 |
| B:NT:NST | 4 | 1 | 0 | 0 | 0 | 13 |
| B:1:P1.4 | 4 | 1 | 0 | 1 | 1 | 0 |
| B:NT:P1.2,5 | 1 | 0 | 0 | 0 | 0 | 6 |
| B:4:P1.1,7 | 2 | 2 | 0 | 2 | 0 | 1 |
| B:NT:P1.1,7 | 0 | 0 | 0 | 1 | 0 | 5 |
| B:14:P1.4 | 2 | 0 | 0 | 0 | 0 | 0 |
| B:14:P1.15 | 0 | 0 | 0 | 1 | 0 | 1 |
| B:4:P1.6 | 0 | 0 | 1 | 0 | 0 | 1 |
| B:4:P1.7 | 2 | 0 | 0 | 0 | 0 | 1 |
| B:NT:P1.7 | 2 | 1 | 0 | 1 | 0 | 3 |
| B:4:NST | 2 | 0 | 0 | 0 | 0 | 1 |
| C:4:P1.4 | 1 | 0 | 0 | 0 | 0 | 0 |
| NG:NT:NST | 0 | 1 | 0 | 0 | 0 | 0 |
| Others | 0 | 0 | 0 | 0 | 0 | 175 |
| Total | 159 | 25 | 7 | 19 | 1 | 209 |
| Dutch isolates (B:4:P1.4) | 16 | 2 | 1 | 1 | 0 | 0 |
| Reference strains | 2 | 0 | 0 | 0 | 0 | 28 |
a
NG, nongroupable; NT, nonserotypeable; NST, nonsubtypeable.
b
Pattern 2723 is described in the text.