Antimicrobial resistance and genetic characterization of Shigella spp. in Shanxi Province, China, during 2006–2016

Table 4 Genetic determinants for cephalosporins and quinolones resistance in Shigella strains

Content	S. flexneri			S. soneni			Total			χ ²	P value
Content	No. Tested	No. Resistant	Rate(%)	No. Tested	No. Resistant	Rate(%)	No. Tested	No. Resistant	Rate(%)	χ ²	P value
Cephalosporins	337	68	20.2	137	55	40.1	474	57	12.0	20.2	0
Quinolones	337	85	25.2	137	2	1.5	474	70	14.8	36.7	0
bla _{CTX-M-1-group}	68	16	23.5	55	19	34.5	123	35	28.5	0.2	0.23
bla _{CTX-M-9-group}	68	12	17.6	55	24	43.6	123	36	29.3	9.9	0
bla _OXA	68	44	64.7	55	5	9.1	123	49	39.8	39.2	0
bla _TEM	68	30	44.1	55	5	9.1	123	35	28.5	18.3	0
bla _SHV	68	5	7.4	55	0	0.0	123	5	4.1	1.1	0.49
bla _CMY	68	13	19.1	55	0	0.0	123	13	10.6	11.8	0

A p value that < 0.05 was considered statistically significant that compared the resistance rates between S. flexneri and S. sonnei

ISSN: 1471-2180