Microbiology of the Chicken Anemia Virus

All Chicken Anemia Virus isolates belong to one serotype, although antigenic differences among isolates have been reported in the United States.

The virus

  • Small (19-24 nm in diameter), spherical, single stranded, non enveloped  DNA-virus.
  • Family: Circoviridae
  • Genus: Gyrovirus
  • Very resistant virus
  • Able to withstand pH of 3 and chloroform
  • Not inactivated by heating at 70°C for one hour or after 5 minutes at 80oC
  • Resistant to lipid solvents and to treatment for 2 hours at 37°C with 5% solutions of commercial disinfectants (quaternary ammonium compounds, amphoteric soap and orthodichlorobenzene)


broiler chicken