0102030405060708090100AmpicillinPiperacillinCefotaximeAztrenamCefmetazoleAmikacinGentamicinCiprofloxacinSMZcoImipenemAntimicrobialRessitance rateESBL(+)ESBL(-)Q Qu ui in no ol lo on ne e r re es si is st ta an nc ce e r ra at te e i in n c cl li in ni ic ca al l i is so ol la at te es s o of f E E.c co ol li i i in n S Sh ha an ng gh ha ai i01020304050601988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003Y Ye ea ar rR Re es si is st ta an nc ce e r ra at te e (%)
