Table 1.

Contingency table comparing epidemiological clustering (A–H) vs. WGS clustering (I–XI) as the reference method.

		WGS clustering
		I	II	III	IV	V	VI	VII	VIII	IX	X	XI	S	Total
Epidemiological clustering	A	2	2											4
	B			2										2
	C	3												3
	D	1			1		2	2					3	9
	E	1								3			4	8
	F	2							1			1		4
	G	1									4		1	6
	H	2			1								1	4
	S	4	2			2			1			2	12	23
	Total	16	4	2	2	2	2	2	2	3	4	3	21	63

S, Singleton.