TABLE 5.

Chronology and homology of plasmid-mediated AmpC β-lactamases

AmpC β-lactamaseCountry of originPublication yrSpecies of first isolateLikely source of AmpC geneSimilarity (%)Reference(s)
CMY-1South Korea1989K. pneumoniaeA. hydrophila8220, 23
CMY-2Greece1996K. pneumoniaeC. freundii9622
MIR-1United States1990K. pneumoniaeE. cloacae99142, 248
MOX-1Japan1993K. pneumoniaeA. hydrophila80134
LAT-1Greece1993K. pneumoniaeC. freundii95326
FOX-1Argentina1994K. pneumoniaeA. caviae9995, 109
DHA-1Saudi Arabia1997S. enteriditisM. morganii9998
ACT-1United States1997K. pneumoniaeE. asburiae9841, 279
ACC-1Germany1999K. pneumoniaeH. alvei9921, 106
CFE-1Japan2004E. coliC. freundii99229