Table 1.

Early-onset sepsis (EOS) and late-onset sepsis (LOS) characteristics.

	EOS	LOS
Age	<72 h	>72 h
Source	Maternal genital tract	Nosocomial
Pathogen	GBS, Escherichia coli	Coagulase-negative staphylococcus
Risk factors	Maternal infections, prolonged ROM, chorioamnionitis	Prolonged mechanical ventilation and intravascular access
Incidence	1.7% among VLBW neonates	21% among VLBW neonates

GBS, group B streptococcus; ROM, rupture of membranes; VLBW, very low birth weight.

Incidence for EOS and LOS adapted from Ref. (3, 15), respectively.