IVV

100 µg VR-HA

500 µg VR-HA

100 µg VR

OS

2/18 (11.1)^a

3/18 (16.7)^a

10/18 (55.6)^b

14/18 (77.8)^b

CS

0/18 (0)^a

0/18 (0)^a

5/18 (27.8)^b

10/18 (55.6)^b