Table 1.

List of antibiotics for which antibiotic resistance genes have been reported in infant gut (in infants having no prior antibiotic exposure) and human milk commensal bacteria

Infant gut	Human milk
Tetracycline [21]	Tetracycline [33, 36]
Macrolides [21]	Oxytetracycline [34]
Quinolone [21]	Chloramphenicol [33]
Fluoroquinolone [30]	Streptomycin [33]
Chloramphenicol [20]	Gentamicin [33]
Trimethoprim [31]	Quinupristin [33]
Streptomycin [21, 31]	Vancomycin [34]
Spectinomycin [21, 31]	Oxacillin [34]
Folate-synthesis inhibitors [20]	Ampicillin [36]
	Cephalothin [34]
	Amoxicillin [34]
	Ciprofloxacin [34]
	Erythromycin [34]
	Clindamycin [34]