TABLE 1.

Typical antibiotics, antibiotic-resistant genes (ARGs), and antibiotic -resistant bacteria (ARB) in food animal farms.

ARB	Antibiotics	ARGs
Gram-negative bacteria	β-Lactams	blaCTX–M–1, blaCTX–M–8, blaCTX–M–14, blaCTX–M–15, blaOXA–48, blaOXA–58, blaCTX–M, blaCMY–2, blaDWA1∼4, blaDWB1, blaTEM, mecA, ampC, etc.
E. coli, K. pneumoniae, P. aeruginosa, Salmonella, Acinetobacter, Sphingomonas, Vibrio, Aeromonas, E. cloacae, Clostridium, etc.	Aminoglycosides	aac, aad, etc.
	Tetracyclines	tetA, tetB, tetC, tetG, tetO, tetM, tetX and tetW, etc.
	Sulfonamides	sulI, sulII, sul3, etc.
Gram-positive bacteria	MLSB	ermA, ermB, etc.
S. aureus, S. intermedius, S. hyicus, E. faecium, E. faecalis, E. hirae, E. durans, E. caaeliflavus, E. avium, S. agalactiae, B. licheniformis, etc.	FCA	fca, fexA, etc.
	Vancomycin	van
	Colistin	mcr-1 and mcr-5.1