Avian adenoviruses isolated from poultry in Queensland

Adenoviruses isolated from Queensland poultry flocks with respiratory disease and/or egg production problems have been serotyped by comparison with Japanese and Irish types. Two serological types were recognized among 14 isolates examined; 4 were type 112 (Celo type) and the remaining 10 type 506. Isolates B1363 and B4015 were further characterized by immunodiffusion. Both isolates were shown to contain the avian adenovirus group antigen and B1363 also shared a second (type) antigen with Celo (Phelps) strain. Immuno-electron microscopy revealed the presence of adenovirus group antigen and freedom from contamination with other viruses.