Table 2. Distribution of the various qnrS1-containing transposons in 122 Enterobacteriaceae isolated in HCMC.

Strain	Type A	Type B	Type C	Subtype	Unknown
Hospital strains (n = 63)
Escherichia coli (n = 5)	3 (60 %)	0	0	0	2 (40 %)
K. pneumoniae (n = 52)	40 (77 %)	1 (2 %)	3 (5.7 %)	0	8 (15.3 %)
Others (n = 6)	2 (33.3 %)	0	0	0	4 (66.7 %)
Community strains (n = 49)
Escherichia coli (n = 32)	13 (40.6 %)	0	0	1 (3.1 %)	18 (56.3 %)
K. pneumoniae (n = 15)	5 (33.3 %)	1 (6.7 %)	3 (20 %)	1 (6.7 %)	5 (33.3 %)
Others (n = 2)	0	0	0	0	2 (100 %)