Fecal ESBL-producing E. coli was detected in 30.5% in the community in Shanghai.
In common with many areas in China, CTX-M-14 was the predominant ESBL in Shanghai.
Horizontal transfer of ESBL genes was achieved in up to 40% of the isolates.
S83 L ± D87N in gyrA and S80I in parC were responsible for quinolone resistance.
Multidrug resistance reiterated the importance of using antibiotics rationally.