Table 2. Characteristics of included areas from proactive trial regions of first cull of the Randomised Badger Culling Trial.

Proactive trial region	Area of bounding box (km2) *	Cattle herd breakdowns †	Number of infected setts ‡	Number of uninfected setts
A3	177	15	7	21
B2	169	22	10	97
C3	99.3	12	2	72
E3	152	9	23	90
F1	13.8	4	2	16
G2	92.7	8	15	73
H2	122	16	9	53
Total		86	68	422

* Areas defined by bounding box of breakdown locations plus 5% buffer zone

^† Confirmed cattle herd breakdowns in one year prior to start of initial cull (excluding one outlying breakdown in area E3)

^‡ Infected sett, a sett at which at least one TB-infected badger was captured