Table 8.

Median (M), lower (L) and upper (U) 95% prediction intervals for the time (days post introduction) to 95% confidence in detecting classical swine fever virus in a pig herd when testing 5 pigs with fever or fewer if < 5 pigs with fever were present at the time of sampling

Scenario		Herd size
		50			100			200			1,000
		M	L	U	M	L	U	M	L	U	M	L	U
Short infectious period	Low transmission rate	5	2	9	5	2	8	5	2	8	15	5	32
	Medium transmission rate	5	3	8	4	3	7	4	2	7	11	5	15
	High transmission rate	5	3	7	5	2	7	5	2	8	9	5	11
Long infectious period	Low transmission rate	5	3	7	4	2	7	5	3	7	16	4	28
	Medium transmission rate	5	3	8	5	2	7	5	3	9	11	5	15
	High transmission rate	5	3	8	5	3	8	4	2	8	9	5	12