Author, Donkey, Bureaucrats, Administrators
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{{unfinished}}
{{unfinished}}
====Antigenicity====
====Antigenicity====
*Selective breeding has now controlled the virus:
*Selective breeding has now controlled the virus:
**Hens whose eggs testing positive for antigen in albumin are removed from the flock
**Hens whose eggs testing positive for antigen in albumin are removed from the flock
[[Category:Avian_Type_C_retrovirus]][[Category:Avian]][[Category:Poultry]]