Bacterial and Parasitic Agents Associated with Outbreaks of Highly Pathogenic Avian Influenza (H5N1) in Nigeria
No Thumbnail Available
Date
2006
Journal Title
Journal ISSN
Volume Title
Publisher
Vom Journal of Veterinary Science
Abstract
The Highly pathogenic avian influenza (H5N1) was reported in Nigeria in early January 2006. A total of 430 suspected samples were submitted to the National Veterinary Research Institute, Vom for analysis. 149 of the analysed samples were positive for highly pathogenic avian influenza, out of which 89 were found to have different bacterial organisms. 60 had parasitic agents and 22 had both bacterial and parasitic agents associated with E.coli alone had a mortality of 9.15%, Klebsiella spp alone had a percentage mortality of 26.86%. Combined infections with E. coli and Klebsiella spp resulted in mortality of 66.41%, 28 cases were negative for any bacterial growth and had mortality of 13.12%. Some parasites found to be associated with the outbreak of HPAI are; Eimeria spp (45 cases) and Ascaridia galli (10 cases) found in cases with mortalities of 18.34% and 58.33% respectively. Mortalities in positive cases that had concurrent bacteria and parasitic complications were found to be progressively increasing; E. coli and Eimeria spp 4.57%; Klebsiella spp/ Eimeria spp - 10.23% and E. coli/ Klebsiella /Eimeria spp - 19.25%. It is not clear how far these infections contributed to mortalities caused by the HPAI.
Description
Keywords
Bacterial, Parasitic, Agents, Highly pathogenic avian influenza, Outbreak, Nigeria