Prevalence of an outbreak of chicken infectious anaemia virus in Sharkia [electronic resource].

Includes references.

The identification of the virus strains as ClAV is based on: 1- The lesions recorded in naturally infected chickens were compatible with those reported for CIA (thymus atrophy, yellow bone marrow, anaemia and haemorrhage). 2- These lesions were also reproduced in chickens inoculated with materials treated with chloroform and passed through 50 nm filters. 3- Low haematocrite value of naturally and experimentally infected chickens under investigation (27%). 4- Inoculation of embryonated chicken eggs via yolk sac. 5- Isolated virus strains did not agglutinate chicken and/or sheep erythrocytes (RBCs). 6- The isolates induced histo-pathologieal lesions which were a reflection of macroscopic observations. 7- These findings are the characteristic lesions of the virus and demonstrate that ClAV is present in some flocks in Sharkia.

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