Table 3.

Sensitivity of herd test with respect to animal prevalence and number of pigs sampled per herd test

No. of pigs sampled	Animal prevalence (percentile)
	20% (10th)	30%(25th)	60% (median)	81% (75th)	100% (90th)
1	13	23	53	74	93
2	24	41	78	93	100
3	34	54	90	98	100
4	43	65	95	100	100
5	50	73	98	100	100
6	57	79	99	100	100
7	62	84	99	100	100
8	67	88	100	100	100
9	71	90	100	100	100
10	75	93	100	100	100

Values given are percentages.