TABLE 3.

Clustering^a

Characteristic measured	Results for typing method indicated
	IS6110 identical	IS6110 similar	MIRU-VNTR identical	Spoligotype identical	MIRU-VNTR and spoligotype identical
No. of isolates	347	347	326	323	315
No. of clusters	12	38	40	34	29
No. of matched isolates (%)	27 (8)	104 (30)	148 (45)	205 (64)	101 (32)
Median no. of isolates/cluster (range)	2 (2-3)	2 (2-8)	2.5 (2-11)	3.5 (2-32)	2 (2-9)
% Transmission	4	19	33	53	23

^aClustering by each typing method. To be clustered by the combination of MIRU-VNTR and spoligotyping, isolates had to be identical by both methods.