Table 2.

Microbiology culture results of mothers involved

	High vaginal swab	Rectal swab	Mid-stream urine	Expressed breast milk	ESBL resistance mechanism
Mother of neonate 1	negative	negative	negative	negative	not tested
Mother of neonate 2 (index case)	negative	ESBL positive	ESBL positive	ESBL positive	CTX-M
Mother of neonates 3&4	negative	not tested	not tested	not tested	not tested
Mother of neonate 5	negative	negative	negative	not tested	not tested
Mother of neonate 6	negative	ESBL positive	ESBL positive	negative	CTX-M