TABLE 2.
N. meningitidis culture and PCR results for throat swabs and mouth gargles from 89 studentsa
| Volunteer no. | Throat swab
|
Gargle
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Culture | Type | PCR
|
Culture | Type | PCR
|
|||||
| Original ctrA | New ctrA | siaDb | Original ctrA | New ctrA | siaDb | |||||
| 1 | + | NG; NT; P1.16 | − | + | − | − | − | + | − | |
| 3 | + | NG; NT:P1.3,P1.6 | − | − | ND | − | + | + | − | |
| 6 | + | NG; NT:P1.16 | + | + | B | − | − | − | ND | |
| 9 | + | NG; NT:P1.15 | − | + | − | − | − | + | − | |
| 13 | + | W135; NT:P1.3,P1.6 | + | + | − | + | NG; NT:P1.3,P1.6 | − | + | − |
| 15 | + | NG; 1:P1.6 | + | + | − | + | NG; 1:P1.6 | + | + | − |
| 16 | − | − | − | ND | + | NG; NT:P1.15 | − | − | ND | |
| 33 | + | NG; NT:P1.7 | − | − | ND | + | NG; NT:P1.7 | − | − | ND |
| 34 | + | W135; NT:P1.3,P1.6 | + | + | B | + | NG;1:P1.13 | ± | − | − |
| 36 | + | NG;NT:P1.16 | + | + | B | + | NG; NT:P1.16 | + | + | B |
| 49 | − | + | + | B | − | − | + | − | ||
| 59 | − | + | + | B | + | NG; NT:P1.14 | + | + | − | |
| 63 | + | W135; NT:P1.3,P1.6 | ± | − | − | − | − | − | ND | |
| 64 | + | NG; 15:P1.6 | − | − | ND | + | NG; 15:P1.6 | − | − | ND |
| 69 | + | NG; NT:P1.15 | − | − | ND | − | − | − | ND | |
| 72 | − | − | − | ND | + | NG; 15:P1.6 | − | − | ND | |
| 75 | − | − | − | ND | + | NG; NT:P1.14 | − | − | ND | |
| 82 | + | NG; NT:P1.3,P1.6 | + | + | − | − | + | + | − | |
| Others | − | − | ND | − | − | − | ND | |||
| Total no. of positives | 13 | 9 | 10 | 10 | 6 | 9 | ||||
a
−, negative test result; ±, weak positive result; +, positive result; ND, test not done; NG, not groupable; NT, not typeable.
b
Negative siaD PCR result does not exclude the possibility of group B or C.