From: Spray vaccination with a safe and bivalent H9N2 recombinant chimeric NDV vector vaccine elicits complete protection against NDV and H9N2 AIV challenge
Groups
2×106 EID50/0.1 mL
10 ×106 EID50/0.1 mL
Oral
Cloacal
LX-OAI4S-NPU-HA
1/10
0/10
LX-OAI4S
PBS
10/10
9/10