Figure 3From: Attenuated Salmonella typhimurium delivering DNA vaccine encoding duck enteritis virus UL24 induced systemic and mucosal immune responses and conferred good protection against challengeRT-PCR detection of the transcripts of UL24 and LTB-UL24 genes in vivo. (A) Lane M, DL 100–2000 marker; lane 1, ducklings were orally immunized with SL7207 (pVAX-UL24); lane 2, control ducklings were orally immunized with SL7207 (pVAX1); (B) lane 1, ducklings were orally immunized with SL7207 (pVAX-LTB-UL24); lane 2, control ducklings were orally immunized with SL7207 (pVAX1); lane 3, DL 100–2000 marker.Back to article page