Table 1.

Demographics and clinical findings of the three cases of LOD and their own mothers

	CASE 1	CASE 2	CASE 3
Gestational age, weeks	38	37	40
Sex	M	M	F
Birth weight, g	3290	3375	3176
5 min Apgar score	10	10	10
Antenatal GBS screening	Negative	Negative	Negative
GBS rectovaginal culture at diagnosis	Negative	Negative	Negative
Breastfeeding	Yes	Yes	Yes
Days at presentation of late-onset disease	9	17	8
Symptoms	irritability, poor feeding	irritability, poor feeding, T° > 38 ° C	irritability, poor feeding, T° > 38 °C
Blood culture	GBS +	GBS +	GBS -
CSF culture	Not done	GBS +	GBS +
Day of antibiotics	10	NA	12
Fresh breast milk culture	GBS +	GBS +	GBS +
Mastitis	No	No	No
Antibiotics given to the mother	Yes	No	No
Breastfeeding during LOD	Yes	NA	NA
Fresh milk culture after antibiotic therapy	negative	NA	NA
GBS neonatal serotype	III	III	NA
GBS maternal serotype	III	III	NA
Lenght of stay, days	10	14	14
Recurrence	no	no	no

GBS Group B streptococcus, F Female, LOD Late-onset disease, M Male, T° Temperature, NA Not available