Phenotypic and genetic differences among group B Streptococcus recovered from neonates and pregnant women in Shenzhen, China: 8-year study

Table 3 Phenotype and molecular characterization of various serotype-ST/CC GBS recovered from infected neonates (no. of isolates)

CPS type-ST/CC	Resistance profile	ERY and CLI resistance gene	TET resistance gene	Virulence-related gene	Culture-confirmed Infection
III-ST17/CC17 (18)	ERY^RCLI^R (16), TET^R (18)	ermB (16), mefA/E (2), lnuB (5)	tetO (18), tetM (13), tetL (1)	hylB (18), lmb (18), scpB (17)	SE (16), BA (1), OM (1)
III-ST19/CC19 (4)	ERY^RCLI^R (3), TET^R (4)	ermB (2), mefA/E (1), lnuB (3)	tetO (3), tetM (4), tetL (1)	hylB (4), lmb (4), scpB (4)	SE (4)
III-ST171/CC17 (1)	ERY^RCLI^R (1), TET^R (1)	ermB (1)	tetO (1), tetM (1)	hylB (1), lmb (1), scpB (1)	SE (1)
Ib-ST12/CC10 (3)	ERY^RCLI^R (3), TET^R (3)	ermB (3), lnuB (2)	tetO (3), tetM (3)	hylB (3), lmb (3), scpB (3), bac (3), bca (2)	SE (2), OM (1)
Ib-ST10/CC10 (1)	ERY^RCLI^R (1)	ermB (1)	none	hylB (1), lmb (1), scpB (1), bac (1), bca (1)	SE (1)
Ia-ST23/CC23 (1)	TET^R (1)	none	tetO (1), tetM (1)	hylB (1), lmb (1), scpB (1)	SE (1)
V-ST456/CC19 (1)	ERY^RCLI^R (1), TET^R (1)	ermB (1), mefA/E (1)	tetO (1), tetM (1), tetL (1)	hylB (1), lmb (1), scpB (1)	OM (1)

CPS capsular polysaccharide, ST sequence type, CC clonal complex, R resistant, ERY erythromycin, CLI clindamycin, TET tetracycline, SE sepsis, BA bacteremia, OM omphalitis