Abstract:
This study was conducted to investigate avian influenza among the
traditional back yard poultry in Southern Sudan – Wau during 2007 2008.
Blood samples were collected from chickens in back yard from ten
villages around Wau. The serum samples were separated from the blood
samples were tested using indirect ELISA to detect antibody for avian
influenza type A in chicken sera. A total of (207) test serum samples were
examined by indirect ELISA and 39 (18.8%) were found positive. The 39
Group specific sera to AI virus were reexamined for the detection of H7
and H AI subtype by HI test using inactivated H7and H5 antigens. The
results showed that 7 out of 39( 17.9%) serum samples were found
positive to subtype H7 and 1 serum was found positive to subtype H5 .
Although the presence of AI subtype H5 and H7 were detected in this
study by using specific H5 and H7 antigens haemagglutination test but
there was no indication of pathogenical disease virulence of AI infection .
