TABLE 2.

Distribution of ESBL-producing E. coli strains based on a combination of genes (or CTX-M group genes) and sources in PR and RS states.

	Poultry litter		Poultry		Feed		Beetle
	PR	RS	PR	RS	PR	RS	PR	RS
CTX-M1	1	–	3	1	1	–	5	NS
CTX-M1 + fosA3	6	–	4	–	2	–	3	NS
CTX-M1 + cit	–	–	–	1	–	–	–	NS
CTX-M1 + CTX-M2 + CTX-M8	1	–	–	–	–	–	–	NS
CTX-M1 + CTX-M8 + fosA3	1	–	–	–	–	–	–	NS
CTX-M1 + cit + fosA3	–	–	1	–	–	–	–	NS
CTX-M2	7	9	6	10	–	–	4	NS
CTX-M2 + mcr-1	–	1	–	–	–	–	–	NS
CTX-M2 + cit	–	1	–	–	–	–	–	NS
CTX-M2 + CTX-M8	–	–	–	1	–	–	–	NS
CTX-M2 + CTX-M8 + cit	–	2	–	1	–	–	–	NS
CTX-M8 + cit	–	–	2	–	–	–	–	NS
fosA3	–	–	1	–	1	–	–	NS
cit	–	–	–	2–	–	–	–	NS

(–) Absence; (NS) Non Sampling; Water not presented ESBL-producing E. coli positive.