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Table 2 Quellung reaction profile of representative 33G and 33G-like Pneumococci with ‘+’ and ‘-’ denoting a positive and negative reaction with typing Sera from SSI diagnostica, respectively

From: Streptococcus pneumoniae serotype 33H: a novel serotype with frameshift mutations in the acetyltransferase gene wciG

 

Sera

33G

33G-like

First pool

A

-

-

B

-

-

C

-

-

D

-

-

E

+

+

F

-

-

G

-

-

H

-

-

I

-

-

Second pool

P

-

-

Q

-

-

R

-

-

S

+

+

T

+

+

Group

10

+

+

33

+

+

Group 10 factors

10b

+

+

10d

+ (weak)a

+ (weak)a

10f

-

-

Group 33 factors

33b

-

+

33e

-

-

33f

+

-

6a

-

-

20b

-

-

Serotype result

 

10B and 33B

10B and 33F

  1. a Reaction is weak with one 1 µl loopful of 10d factor sera. A stronger reaction was obtained using two 1 µl loopfuls of sera
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Pneumonia

ISSN: 2200-6133

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