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. 2008 Apr;72(3):228–235.

Table II.

Test day effects on disease traits

	Test Day (DPI)
TRAIT	1	2	3
Isolation	0.431^b	0.719^a	0.493^b
Lesion	4.039^b	5.455^a,b	6.152^a
PCR	0.377^b	0.639^a	0.513^a,b
Clinical signs	2.515^b	4.596^a	4.553^a

^{a, b}

Means with uncommon superscript differed significantly (P < 0.05).