Prevalence of influenza A viruses in livestock and free-living waterfowl in Uganda

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dc.contributor.authorKirunda, Halid
dc.contributor.authorErima, Bernard
dc.contributor.authorTumushabe, Agnes
dc.contributor.authorKiconco, Jocelyn
dc.contributor.authorTugume, Titus
dc.contributor.authorMulei, Sophia
dc.contributor.authorMimbe, Derrick
dc.contributor.authorMworozi, Edison
dc.contributor.authorBwogi, Josephine
dc.contributor.authorLuswa, Lukwago
dc.contributor.authorKibuuka, Hannah
dc.contributor.authorMillard, Monica
dc.contributor.authorByaruhanga, Achilles
dc.contributor.authorDucatez, Mariette F.
dc.contributor.authorKrauss, Scott
dc.contributor.authorWebby, Richard J.
dc.contributor.authorWebster, Robert G.
dc.contributor.authorWurapa, Kofi
dc.contributor.authorByarugaba, Denis K.
dc.contributor.authorWabwire-Mangen, Fred
dc.date.accessioned2022-01-20T17:19:06Z
dc.date.available2022-01-20T17:19:06Z
dc.date.issued2014
dc.description.abstractAvian influenza viruses may cause severe disease in a variety of domestic animal species worldwide, with high mortality in chickens and turkeys. To reduce the information gap about prevalence of these viruses in animals in Uganda, this study was undertaken. Results: Influenza A virus prevalence by RT-PCR was 1.1% (45/4,052) while sero prevalence by ELISA was 0.8% (24/2,970). Virus prevalence was highest in domestic ducks (2.7%, 17/629) and turkeys (2.6%, 2/76), followed by free-living waterfowl (1.3%, 12/929) and swine (1.4%, 7/511). A lower proportion of chicken samples (0.4%, 7/1,865) tested positive. No influenza A virus was isolated. A seasonal prevalence of these viruses in waterfowl was 0.7% (4/561) for the dry and 2.2% (8/368) for the wet season. In poultry, prevalence was 0.2% (2/863) for the dry and 1.4% (24/1,713) for the wet season, while that of swine was 0.0% (0/159) and 2.0% (7/352) in the two seasons, respectively. Of the 45 RT-PCR positive samples, 13 (28.9%) of them were H5 but none was H7. The 19 swine sera positive for influenza antibodies by ELISA were positive for H1 antibodies by HAI assay, but the subtype(s) of ELISA positive poultry sera could not be determined. Antibodies in the poultry sera could have been those against subtypes not included in the HAI test panel. Conclusions: The study has demonstrated occurrence of influenza A viruses in animals in Uganda. The results suggest that increase in volumes of migratory waterfowl in the country could be associated with increased prevalence of these viruses in free-living waterfowl and poultry.en_US
dc.identifier.citationKirunda et al.: Prevalence of influenza A viruses in livestock and free-living waterfowl in Uganda. BMC Veterinary Research 2014 10:50. doi:10.1186/1746-6148-10-50en_US
dc.identifier.other10.1186/1746-6148-10-50
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/1346
dc.language.isoenen_US
dc.publisherBMC Veterinary Researchen_US
dc.subjectInfluenza A virusesen_US
dc.subjectPoultryen_US
dc.subjectPigsen_US
dc.subjectRNAen_US
dc.subjectSeraen_US
dc.subjectFree-livingen_US
dc.subjectWaterfowlen_US
dc.titlePrevalence of influenza A viruses in livestock and free-living waterfowl in Ugandaen_US
dc.typeArticleen_US
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