Table 2.

Estimated transmission rate by provinces/districts (2014–2018)

Provinces	No. of isolates	No. of cases clustered* n	No. of clusters	Estimated proportion of cases likely due to recent transmission %	Number of clusters by cluster size
					2–4 cases	5–10 cases	11–25 cases	≥26
WC	897	661	89	64	68	13	5	3
EC	723	435	64	51	47	11	3	3
MP	435	193	48	33	42	4	1	1
NW	358	116	42	21	38	4
KZN	230	90	28	27	23	4	1
GP	142	41	15	18	14	1
NC	135	22	10	9	10
FS	79	13	5	10	5
Total	2999	1571	301	42	247	37	10	7

n number, WC Western Cape, EC Eastern Cape, MP Mpumalanga, NW North West, KZN KwaZulu-Natal, GP Gauteng, NC Northern Cape, FS Free State