Detection of avian leukosis virus using polymerase chain reaction and enzyme linked immunosorbent assay
Thapa Chhetri, Bala Ram and Abd Rasid, Omar and Md Mahfuzul Hoque, and Arshad, Siti Suri and Bejo, Mohd Hair (2004) Detection of avian leukosis virus using polymerase chain reaction and enzyme linked immunosorbent assay. Jurnal Veterinar Malaysia, 16 (1&2). pp. 21-26. ISSN 9128-2506
The applications of polymerase chain reaction (PCR) and enzyme linked immunosorbent assay (ELISA) in detecting avian leukosis virus (ALV) subgroups A and J were studied in a flock of breeder chickens. Out of 74 chickens tested 9, 36, 13 and 16 were found positive for both p27/gp85, negative for both, positive for p27 and positive for gp85, respectively. All the chickens that were found positive for p27 antigen were also positive for subgroup A proviral DNA. Although 25 chickens were positive for subgroup J gp85 antibody, none of the chickens were found positive for subgroup J proviral DNA. Hence, detection of p27 antigen from cloacal swab was found to correlate more with detection of proviral DNA. However, none of the chickens were found positive for viral RNA and did not shed infectious viruses. In conclusion, accurate diagnosis of ALV infection requires more than one laboratory test for confirmation.
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