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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Molecular epidemiology of chicken anemia virus in Nigeria
Archives of Virology, Volume 151, No. 1, Year 2006
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Description
Between February 2002 and May 2004, chicken anemia virus (CAV) was detected by PCR in organ samples from 14 flocks of poultry farms in Lagos, Ogun and Oyo States in Southwestern Nigeria. The farms reported low (<5%) to high mortalities (up to 100%) with various lesions at necropsy. The complete VP1 gene of 30 of these positive strains was sequenced. Strains that diverged by up to 4.4% on a nucleotide level differed only by up to 2.5% at the amino acid level (7 aa) as a result of clustered silent mutations. No amino acid substitutions specific for Nigerian strains were observed. Some birds had a CAV mixed infection. Genetic clustering of the VP1 gene did not correlate with differences in flock mortality but the co-infection of CAV with IBDV may be particularly lethal. This first molecular epidemiological study of CAV in Africa shows that the Nigerian strains cluster with viruses from very diverse geographic origins and were almost as diverse (4.4%) as all other strains combined (5.8%). © Springer-Verlag 2005.
Authors & Co-Authors
Ducatez, Mariette F.
Luxembourg, Luxembourg
Laboratoire National de Sante Luxembourg
Owoade, Ademola Amubieya
Nigeria, Ibadan
University of Ibadan
Abiola, John Olusoji
Nigeria, Ibadan
University of Ibadan
Muller, Claude P.
Luxembourg, Luxembourg
Laboratoire National de Sante Luxembourg
Statistics
Citations: 87
Authors: 4
Affiliations: 2
Identifiers
Doi:
10.1007/s00705-005-0609-7
ISSN:
03048608
Research Areas
Genetics And Genomics
Study Locations
Nigeria