TABLE 2.

Comparison of outbreak delineations of different subtyping methods^a

Outbreak	Result by:
	WGST	MLVA	CRISPR-MLVST	PFGE
A	++	+	+	−
B	++	+	+	++
C	++	++	+	++
D	++	++	+	+
E	++	+	+	+
F	++	++	++	+
G	++	++	++	++
H	++	+	+	+
I	++	++	+	+
J	++	−	+	+
K	++	−	−	+
L	++	++	++	+
M	++	+	+	+
N	++	+	−	+
O	++	+	−	+
P	++	+	−	+

^aSymbols are used to report evaluations of subtyping methods. ++, isolates from the outbreak formed a cluster, and the cluster did not include isolates from other outbreaks or sporadic cases; +, isolates from the outbreak clustered with each other but also with isolates from other outbreaks or sporadic cases; −, isolates from the outbreak did not form a cluster.