Infant appears generally well
Infant has been previously healthy:
	Born at term (≥37 weeks of gestation)
	No perinatal antimicrobial therapy
	No treatment for unexplained hyperbilirubinemia
	No previous antimicrobial therapy
	No previous hospitalization
	No chronic or underlying illness
	Not hospitalized longer than mother
Infant has no evidence of skin, soft tissue, bone, joint or ear infection
Infant has these laboratory values:
	White blood cell count of 5,000 to 15,000 per mm3 (5 to 15 × 109 per L)
	Absolute band cell count of ≤1,500 per mm3 (≤1.5 × 109 per L)
	Ten or fewer white blood cells per high-power field on microscopic examination of urine
	Five or fewer white blood cells per high-power field on microscopic examination of stool in infant with diarrhea