Investigating avian influenza infection hotspots in old-world shorebirds

 

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dc.contributor.author Gaidet, Nicolas en_ZA
dc.contributor.author Mamy, Ahmed B Ould El en_ZA
dc.contributor.author Cappelle, Julien en_ZA
dc.contributor.author Caron, Alexandre en_ZA
dc.contributor.author Cumming, Graeme S en_ZA
dc.contributor.author Grosbois, Vladimir en_ZA
dc.contributor.author Gil, Patricia en_ZA
dc.contributor.author Hammoumi, Saliha en_ZA
dc.contributor.author de Almeida, Renata Servan en_ZA
dc.contributor.author Fereidouni, Sasan R en_ZA
dc.date.accessioned 2015-11-11T14:28:52Z
dc.date.available 2015-11-11T14:28:52Z
dc.date.issued 2012 en_ZA
dc.identifier.citation Gaidet, N., Ould, E. M. A., Cappelle, J., Caron, A., Cumming, G. S., Grosbois, V., ... & Balança, G. (2011). Investigating avian influenza infection hotspots in old-world shorebirds. PloS one, 7(9), e46049. doi:10.1371/journal.pone.0046049 en_ZA
dc.identifier.uri http://hdl.handle.net/11427/14932
dc.identifier.uri http://dx.doi.org/10.1371/journal.pone.0046049
dc.description.abstract Heterogeneity in the transmission rates of pathogens across hosts or environments may produce disease hotspots, which are defined as specific sites, times or species associations in which the infection rate is consistently elevated. Hotspots for avian influenza virus (AIV) in wild birds are largely unstudied and poorly understood. A striking feature is the existence of a unique but consistent AIV hotspot in shorebirds (Charadriiformes) associated with a single species at a specific location and time (ruddy turnstone Arenaria interpres at Delaware Bay, USA, in May). This unique case, though a valuable reference, limits our capacity to explore and understand the general properties of AIV hotspots in shorebirds. Unfortunately, relatively few shorebirds have been sampled outside Delaware Bay and they belong to only a few shorebird families; there also has been a lack of consistent oropharyngeal sampling as a complement to cloacal sampling. In this study we looked for AIV hotspots associated with other shorebird species and/or with some of the larger congregation sites of shorebirds in the old world. We assembled and analysed a regionally extensive dataset of AIV prevalence from 69 shorebird species sampled in 25 countries across Africa and Western Eurasia. Despite this diverse and extensive coverage we did not detect any new shorebird AIV hotspots. Neither large shorebird congregation sites nor the ruddy turnstone were consistently associated with AIV hotspots. We did, however, find a low but widespread circulation of AIV in shorebirds that contrast with the absence of AIV previously reported in shorebirds in Europe. A very high AIV antibody prevalence coupled to a low infection rate was found in both first-year and adult birds of two migratory sandpiper species, suggesting the potential existence of an AIV hotspot along their migratory flyway that is yet to be discovered. en_ZA
dc.language.iso eng en_ZA
dc.publisher Public Library of Science en_ZA
dc.rights This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. en_ZA
dc.rights.uri http://creativecommons.org/licenses/by/4.0 en_ZA
dc.source PLoS One en_ZA
dc.source.uri http://journals.plos.org/plosone en_ZA
dc.subject.other Birds en_ZA
dc.subject.other Animal migration en_ZA
dc.subject.other Delta ecosystems en_ZA
dc.subject.other Foraging en_ZA
dc.subject.other Animal sexual behavior en_ZA
dc.subject.other Enzyme-linked immunoassays en_ZA
dc.subject.other Antibodies en_ZA
dc.subject.other Ducks en_ZA
dc.title Investigating avian influenza infection hotspots in old-world shorebirds en_ZA
dc.type Journal Article en_ZA
dc.rights.holder © Gaidet et al en_ZA
uct.type.publication Research en_ZA
uct.type.resource Article en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Percy FitzPatrick Institute of African Ornithology en_ZA
uct.type.filetype Text
uct.type.filetype Image


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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.