TABLE 5.

PCR Primers used in this study

Target	Primer name	Sequence (5′→3′)	Reference
blaCTX-M	Pan CTX-M forward	TTT GCG ATG TGC AGT ACC AGT AA	48
	Pan CTX-M reverse	CGA TAT CGT TGG TGG TGC CAT A
blaCTX-M (group I)	CTXM1-F3 forward	GAC GAT GTC ACT GGC TGA GC	59
	CTXM1-R2 reverse	AGC CGC CGA CGC TAA TAC A
blaCTX-M (group II)	TOHO1-2F forward	GCG ACC TGG TTA ACT ACA ATC C	59
	TOHO1-1R reverse	CGG TAG TAT TGC CCT TAA GCC
blaCTX-M (group III)	CTXM8.WSAgroupIII.F forward	AGA CCT GAT TAA CTA CAA TCC CAT TA	51
	CTXM8.WSAgroupIII.R reverse	ACT TTC TGC CTT CTG CTC TGG C
blaCTX-M (group IV)	CTXM914F forward	GCT GGA GAA AAG CAG CGG AG	59
	CTXM914R reverse	GTA AGC TGA CGC AAC GTC TG
blaCTX-M sequencing primers	CTXM-1 upstream forward	ATG TTG TTG TTA ATT CGT CTC	46
	CTXM-1 upstream reverse	CGT TAT CGC TGT ACT GTA G
	CTXM-2 downstream forward	TTA ACT ATA ATC CGA TTG CG	46
	CTXM-2 downstream reverse	TTT CTG CCT TAG GTT GAG
blaCTX-M (CTX-M-9 group)	M9 upper forward	ATG GTG ACA AAG AGA GTG CA	60
	M9 lower reverse	CCC TTC GGC GAT GAT TCT C
uidA	UAL-754 forward	AAA ACG GCA AGA AAA AGC AG	47
	UAR-900 Reverse	ACG CGT GGT TAC AGT CTT GCG