Table 3.

Estimated transmission rate by strain family (2014–2018)

Family	No. of isolates	No. of cases clustered* n	No. of clusters	Estimated proportion of cases likely due to recent transmission %
Beijing	1495	1096	136	64.2
X	212	122	25	45.8
EAI	208	106	18	42.3
LAM	329	146	38	32.8
H	88	28	4	27.3
S	172	64	24	23.3
T	271	80	21	21.8

n number