Table 2.

Cytokine expression in CAV maternal antibody-positive chickens experimentally inoculated with CAV at 14 and 21, and 28 days of age (Exp. II)

	Treatment			CAV antibodies at		No pos/total in RT–PCR for
Group	CAV	Age of infection (days)	Examination at days p.i.	10 days of age	Day of examination	IL-2	IL-1β	IFN-γ	β-actin
1	–	14	4	3/3	3/3	3/3	3/3	3/3	3/3
			7	3/3	2/3	3/3	3/3	3/3	3/3
2	+		4	3/3	3/3	3/3	3/3	3/3	3/3
			7	3/3	3/3	3/3	3/3	2/3	3/3
3	–	21	7	2/2	NT	2/2	2/2	0/2	2/2
4	+		7	3/3	NT	3/3	2/3	3/3	3/3
5	–	28	4	3/3	1/3	2/3	3/3	1/3	3/3
			7	2/2	1/2	1/2	2/2	1/2	2/2
6	+		4	3/3	1/3	0/3	3/3	1/3	3/3
			7	3/3	1/3	3/3	1/3	3/3	3/3