strain_id	description	flag	length
NZ_CP038414.1	Escherichia coli O157:H7 strain 17B6-2 chromosome, complete genome	genbank	5542130
NZ_CP038415.1	Escherichia coli O157:H7 strain 17B6-2 plasmid p17B6-1, complete sequence	genbank	92490
