| virus-neutralizing antibody titers against 8 avian adenovirus serotypes in breeder hens in georgia by a microneutralization procedure. | serums from 16 chicken-breeder flocks in georgia were tested for virus-neutralizing antibody to 8 serotypes of avian adenovirus. titers to all 8 serotypes were demonstrated in 8 of the flocks, titers to 7 in 6, and titers to fewer than 7 in the other 2 flocks. although titers were high overall to some serotypes (types 2 and 8) and low to others (types 1, 4, and 5), with statistically significant differences between many titers, the data were difficult to interpret because of possible heterotypic ... | 1977 | 194569 |