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  • Title: Genomic identification and characterization of avian adenoviruses associated with inclusion body hepatitis.
    Author: El-Attrache J, Villegas P.
    Journal: Avian Dis; 2001; 45(4):780-7. PubMed ID: 11785882.
    Abstract:
    Four pathogenic avian adenovirus isolates associated with inclusion body hepatitis and mortality in commercial broiler chicks and chickens were characterized and identified. These group I avian adenovirus isolates were classified as group E (serotypes 6, 7, 8, and 9) avian adenoviruses on the basis of the restriction enzyme patterns of their viral DNA. Isolate 3718 was neutralized by a serotype 6 reference avian adenovirus antiserum and isolates 8193, 8380, and 8565 were all neutralized by a serotype 8 reference avian adenovirus antiserum by virus neutralization assays. Infectivity and virulence such as mortality, hemorrhages, enlarged green livers with intranuclear inclusion bodies, stunting, intestinal sloughing, and poor feathering were observed in specific-pathogen-free chicken embryos and were identical for all four isolates when embryos were inoculated via the yolk sac and/or chorioallantoic membrane. Complete mortality was observed within 72 hr postinoculation in specific-pathogen-free (SPF) chickens inoculated intramuscularly for all four avian adenovirus isolates.
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