TABLE 1.
Characteristics of the N. meningitidis isolates recovered from the Chicago and Toronto outbreaks
| Outbreak location, yr | Serogroup | MLST | MLEEe type | fumC640 point mutation | porA VR type | porB VR type | 16S rRNA gene sequence type | PFGE type |
|---|---|---|---|---|---|---|---|---|
| Chicago, 2003 | C | ST-11 | NDd | G → A | P1.5-1,10-8 | I.1, V.1, VI.1, VII.1 | 166 | H46N06.0183 |
| Toronto, 2001a | C | ST-11 | ET-15 | G → A | P1.5,2 | I.1, V.1, VI.1, VII.1b | 13 | H46N06.0214c |
a
Toronto data are from Tsang et al. (11), except for the MLST, the porA VR type, the 16S rRNA gene sequence type, and the PFGE pattern designation.
b
The porB VR type of the Toronto isolate is most similar to I.1, V.1, VI.1, VII.1; however, this designation does not denote the nucleotide substitution in VR3 of the Toronto isolate (11).
c
PFGE pattern H46N06.0214 was <85% similar to H46N06.0183 and differed by more than five bands (7).
d
ND, not done.
e
MLEE, multilocus enzyme electrophoresis.