Table 1: Primers used in the study.

Primer	Oligonucleotide sequences	Size (bp)	Reference
rDNA16S AC	F-5'_TGGCTCAGATTGAACGCTGGCGGC_3'	1,500	18
	R-5'_TACCTTGTTACGACTTCACCCCA_3'
blaTEM	F-5´_ATGAGTATTCAACAT TTCCG_3´	956	23
	R-5´_CTGACAGTTACCAATGCTTA_3´
bla VIM	F-5´_AAAGTTATGCCGCACTCACC_3´	865	24
	R-5´_TGCAACTTCATGTTATGCCG_3´
bla IMP	F- 5´_ATGAGCAAGTTATCCTTATTC_3´	741	25
	R- 5´_GCTGCAACGACTTGTTAG_3´
blaCTX-M-9	F -5´_GTGACAAAGAGAGTGCAACGG_3´	856	26
	R-5´_ATGATTCTCGCCGCTGAAGCC_3´
blaOXA-51	F-5´_CGGAGAACGACTCCTCATTAAAAA_3´	431	27
	R-5´_TTTAGCTCGTCGTATTGGACTTGA_3´
blaOXA-58	F-5´_AAGTATTGGGGCTTGTGCTG_3´	599	28
	R-5´_CCCCTCTGCGCTCTACATAC_3´
Int1	F-5´_CAGTGGACATAAGCCTGTTC_3´	160	29
	R-5'_CCCGAGGCATAGACTGTA_3´
Int2	F-5´_TTGCGAGTATCCATAACCTG_3´	288	29
	R-5´_TTACCTGCACTGGATTAAGC_3´
CS	R-5´_GGCATCCAAGCAGCAAG_3´	Variable	29
	F-5´_AAGCAGACTTGACCTGA_3´
hep35	R-5´_TGCGGGTYAARGATBTKGATTT_3´	491	30
hep36	F-5´_CARCACATGCGTRTARAT_3´