Naïve control

pCAG-HAk

pCAG-optiHA

pCI-HAk

Antibody response

Prior to challenge

0

0

0

0

Post challenge

6.0 ± 2.0*

5.6 ± 1.7

5.0 ± 3.4

8.2 ± 2.2

Virus shedding

Oropharyngeal swabs

17/24 (70.8)**a

9/20 (45)a

12/20 (60)a

12/20 (60)a

Cloacal swabs

3/24 (12.5)a

0/20 (0)a

0/20 (0)a

1/20 (5)a