Volume 23, Number 6—June 2017
Research
Invasive Serotype 35B Pneumococci Including an Expanding Serotype Switch Lineage, United States, 2015–2016
Sopio Chochua, Benjamin J. Metcalf, Zhongya Li, Hollis Walker, Theresa Tran, Lesley McGee, and Bernard Beall
Table 4
Serologic comparison of 35B/ST156 lineage strains with CDC Quellung reagents for resolution of serogroup 35B invasive serotype pneumococci including an expanding serotype switch lineage, United States, 2015–2016*
| Strain | Quellung factor |
||||
|---|---|---|---|---|---|
| 35b | 29b | 35c | 42a | 35a | |
| cps35B† | − | + | + | − | + |
| cps35B (wciG deletion)‡ | − | + | + | − | − |
*CDC, Centers for Disease Control and Prevention; ST, sequence type; −, negative; +, positive.
†Refers to 17 progeny resulting from recombination indicated in left column under progeny lineage diagram in Figure 3.
‡Refers to 2 indicated wciG deletion isolates in right column under progeny lineage diagram in Figure 3.
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