Table 6

Relationship between anti-hemagglutinin seropositivity in chickens immunized with pCAG-HA DNA vaccine and protection against avian influenza (strain A/chicken/Pennsylvania/1370/1/1983 [H5N2])a

AI protection statusHI resultcELISA resultIndirect ELISA result
PositiveNegativePositiveNegativePositiveNegative
Protected181145172
Not protected181818
Total19915131810
  • a Chickens were immunized with pCAG-HA vaccine (10 to 250 μg) delivered with electroporation (n = 19) or without (n = 9). Antibody data are shown in Tables 1 to 3, and protection data are shown in Table 5.