Table 1.

Experimental design—sampling time point

DPV	Blood (ELISA)	TW (ELISA)	HG (flow cytometry)	Spleen (flow cytometry)
3	-	-	+	+
7	-	+	+	+
14	+	+	+	+
21	+ (HIa)	+	-	-

On different DPV, samples were collected simultaneously from all of the experimental groups

^a21 DPV 5 serum samples reacting possitive in ELISA were subjected for HI evaluation