Table 3.

Results of β-lactamase gene types, integrons and transconjugants of β-lactamase -producing Enterobacteriaceae from retail food in China.

No.	Strains	Species	Resources	City	β-lactamase phenotypes	Integrons	Transconjugantsa
1	121-0.1	C. freundii	Frozen chicken-meat	Guangzhou	CTX-M+TEM+CMY+OXA	Int1	+
2	1565-2	E. coli	Cucumber	Guangzhou	CTX-M+SHV	Int1
3	1567-1	E. coli	Frozen pasta	Guangzhou	CTX-M+SHV	Int1	–
4	1573-3	E. coli	Chicken	Guangzhou	SHV+OXA	Int1
5	1587-3	E. coli	Brine-soaked duck	Guangzhou	SHV	Int1	–
6	1650-1	E. coli	Mushroom	Guangzhou	CTX-M+SHV	Int1
7	1501-3	E. coli	Pork	Guangzhou	TEM	Int1	–
8	1507-2	E. coli	Freshwater aquatic product	Guangzhou	TEM	Int1
9	1511-3	E. coli	Brine-soaked chicken	Guangzhou	TEM	Int1
10	1516-1	E. coli	Cold noodles in sauce	Guangzhou	CTX-M+TEM	Int1	+
11	1524-1	E. coli	Chicken	Guangzhou	SHV	Int1	–
12	1492-2	E. coli	Frozen chicken-meat	Guangzhou	CTX-M+TEM	Int1
13	1845-2	E. coli	Frozen chicken-meat	Shaoguang	CTX-M	Int1	+
14	715-2	C. koseri	Frozen pasta	Fuzhou	TEM+OXA	Int1	–
15	2241-1	E. coli	Cucumber	Fuzhou	CTX-M+SHV	Int1	–
16	2245-1	E. coli	crozen sheep-meat	Fuzhou	CTX-M+SHV	Int1	–
17	55-19	Salmonella spp.	Chicken	Fuzhou	TEM	Int1	–
18	22-31	C. amalonaticus	Cold vegetable dish in sauce	Haikou	TEM+OXA	Int1	–
19	2403-2	E. coli	Pork	Haikou	CTX-M+TEM+OXA	Int1	+
20	2443-1	E. coli	Frozen chicken-meat	Haikou	CTX-M+TEM	Int1	–
21	2266-2	E. coli	Frozen pasta	Nanning	SHV+TEM+OXA	Int1	+
22	2293-2	E. coli	Frozen chicken-meat	Nanning	SHV+TEM+OXA	Int1	–
23	2295-1	E. coli	Mushroom	Nanning	TEM+OXA	Int1	–
24	58-8	Salmonella spp.	Duck	Beihai	CTX-M+TEM	Int1	–
25	1975-1	E. coli	Beef	Haerbing	CTX-M+SHV	Int1	–
26	2151-1	C. freundii	Pork	Lanzhou	CTX-M+SHV	Int1	–
27	2181-2	C. freundii	Coriander	Lanzhou	CTX-M+OXA	Int1	–
28	2103-2	E. coli	Pork	Taiyuan	CTX-M+SHV+TEM	Int1	+
29	2107-1	E. coli	Marine food product	Taiyuan	CTX-M+TEM	Int1
30	2110-1	E. coli	Cold noodles in sauce	Taiyuan	CTX-M+SHV+TEM	Int1	+
31	2131-2	E. coli	Freshwater aquatic product	Taiyuan	CTX-M+TEM	Int1
32	2104-2	E. coli	Marine food product	Taiyuan	CTX-M+SHV+TEM	Int1	+
33	2123-1	E. coli	Chicken	Taiyuan	CTX-M+TEM	Int1	–
34	53-19	Salmonella spp.	Duck	Taiyuan	CTX-M+TEM	Int1	+
35	53-21	Salmonella spp.	Frozen chicken-meat	Taiyuan	TEM	Int1
36	53-25	Salmonella spp.	Frozen chicken-meat	Taiyuan	CTX-M+TEM	Int1	–
37	53-35	Salmonella spp.	Duck	Taiyuan	CTX-M+TEM	Int1	+
38	53-37	Salmonella spp.	Frozen chicken-meat	Taiyuan	CTX-M+TEM	Int1	–
39	2102-1	E. coli	Beef	Taiyuan	TEM+OXA	Int1	+
40	2111-2	E. coli	Cold noodles in sauce	Taiyuan	CTX-M+SHV+TEM	Int1	–
41	2069-1	E. coli	Mushroom	Beijing	CTX-M+TEM	Int1	–
42	2024-2	C. freundii	Marine food product	Jinan	CTX-M+TEM	–	+
43	2016-2	E. coli	Frozen pasta	Jinan	CTX-M+TEM	Int1
44	2023-1	E. coli	Chicken	Jinan	SHV+TEM	Int1	+
45	2032-1	E. coli	Frozen chicken-meat	Jinan	SHV+TEM	Int1	–
46	2037-1	E. coli	Chicken	Jinan	CTX-M+SHV	Int1	+
47	2039-1	E. coli	Freshwater aquatic product	Jinan	CTX-M+TEM	Int1	–
48	2025-2	E. coli	Freshwater aquatic product	Jinan	CTX-M+SHV+TEM	Int1	–
49	2043-1	E. coli	Brine-soaked chicken	Jinan	CTX-M+SHV+TEM	Int1	–
50	30-14	C. amalonaticus	Freshwater aquatic product	Wuhan	CTX-M+TEM	Int1	–
51	2694-2	E. coli	Frozen chicken-meat	Wuhan	CTX-M+TEM	Int1	–
52	64-6	Salmonella spp.	Frozen chicken-meat	Wuhan	CTX-M+TEM	Int1	–
53	2699-2	S. marcescens	Mushroom	Wuhan	TEM	Int1	+
54	2684-2	E. coli	Roast duck	Wuhan	SHV+TEM	Int1	+
55	2679-2	E. coli	Freshwater aquatic product	Wuhan	CTX-M+TEM	Int1	–
56	2553-1	E. coli	Pork	Chengdou	CTX-M+TEM	Int1	–
57	2574-2	E. coli	Duck	Chengdou	CTX-M+TEM+OXA	Int1	+
58	2590-1	E. coli	Tomato	Chengdou	CTX-M+SHV+TEM	Int1	–
59	62-19	Salmonella spp.	Frozen chicken-meat	Chengdou	TEM+OXA	Int1	–
60	62-20	Salmonella spp.	Frozen pork	Chengdou	CTX-M+TEM	Int1	–
61	2603-2	E. coli	Pork	Hefei	CTX-M+SHV+TEM+OXA	Int1	+
62	2624-2	E. coli	Chicken	Hefei	SHV+TEM	Int1	–
63	2642-2	E. coli	Frozen chicken-meat	Hefei	TEM+OXA	Int1	+
64	63-13	Salmonella spp.	Frozen chicken-meat	Hefei	CTX-M+TEM+OXA	Int1	+
65	2644-3	E. coli	Frozen chicken-meat	Hefei	CTX-M+TEM	–	–
66	61-1	Salmonella spp.	Chicken	Nanchang	CTX-M+TEM	Int1	+
67	2523-2	E. coli	Chicken	Nanchang	TEM	Int1
68	2543-1	E. coli	Frozen chicken-meat	Nanchang	CTX-M+TEM	Int1	–
69	2722-2	E. coli	Pork	Shanghai	CTX-M+SHV+TEM	Int1	–
70	2723-1	E. coli	Chicken	Shanghai	SHV+TEM	Int1
71	2745-2	E. coli	Frozen chicken-meat	Shanghai	CTX-M+SHV+TEM	Int1	+
72	2749-2	E. coli	Mushroon	Shanghai	CTX-M+TEM	Int1	–

^a+, have been obtained transconjugants; –, have not been obtained transconjugants.