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Publication of Avian influenza

60 Years, 60 Beneficiaries

60 years ago Wetlands International began working towards the safeguarding and restoration of people and nature. Over the past six decades we have grown, both as an organisation and in the scope of our work. Join us in celebrating our birthday and have a look at some of our beneficiaries over the last 60 years. 

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Surveillance of wild waterbirds for Avian Influenza viruses in Lithuania

This a new paper on avian influenza in wild birds in Lithuania that was recently published in Lithuanian Journal of Veterinary.

 

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Investigating Avian Influenza Infection Hotspots in Old- World Shorebirds

In this study the authors, including our own Bouba Fofana of our Mali Office and Associate Expert Tim Dodman, looked for Avian Influenza Virus (AIV) hotspots associated with other shorebird species and/or with some of the larger congregation sites of shorebirds in the old world. They 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.

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Eco-Virological Approach for Assessing the Role of Wild Birds in the Spread of Avian Influenza H5N1 along the Central Asian Flyway

A unique pattern of highly pathogenic avian influenza (HPAI) H5N1 outbreaks has emerged along the Central Asia Flyway, where infection of wild birds has been reported with steady frequency since 2005. We assessed the potential for two hosts of HPAI H5N1, the bar-headed goose (Anser indicus) and ruddy shelduck (Tadorna tadorna), to act as agents for virus dispersal along this ‘thoroughfare’.

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Conservación de los recursos acuáticos y la biodiversidad en arroceras

Las Buenas Prácticas Ambientales en Cultivos de Arroz son un conjunto de recomendaciones para alcanzar las mejores acciones de manejo para la producción sustentable del arroz. 

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Implementing telemetry on new species in remote areas

This article provides recommendations for implementing telemetry studies on waterfowl on the basis of our experience in a tracking study conducted in three countries of sub-Saharan Africa. The aim of the study was to document movements by duck species identified as priority candidates for the potential spread of avian influenza.

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Migratory movements of waterfowl in Central Asia and avian influenza emergence

In this study, historical data derived from over 80 years of bird ringing are combined with recent satellite tracking data to delineate migration routes, movement chronology and habitat use patterns of waterfowl in relation to H5N1 outbreak locations. Results confirm migratory linkage between breeding and moulting areas in northern Kazakhstan and southern Siberia, with nonbreeding areas in the Caspian, Black and eastern Mediterranean Sea basins, as well as with South Asia. 

 

 

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Low pathogenic avian influenza H5N2 virus in wild birds in Nigeria in Africa.

We monitored avian influenza in wild and domestic birds in two different regions in Nigeria to investigate the presence and persistence of avian influenza virus in African birds. We found low pathogenic avian influenza (LPAI) H5N2 viruses in three spur-winged geese (Plectropterus gambensis) in the Hadejia–Nguru wetlands. Phylogenetic analyses revealed that all of the genes, except the non-structural (NS) genes, of the LPAI H5N2 viruses were more closely related to genes recently found in wild and domestic birds in Europe.

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Flying over an infected landscape: distribution of Highly Pathogenic Avian Influenza H5N1 risk in South Asia and satellite tracking of wild waterfowl.

This study suggests that the continental-scale dynamics of HPAI H5N1 are structured as a number of persistence areas delineated by domestic ducks, connected by rare transmission through migratory waterfowl.

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Outbreaks of highly pathogenic avian influenza in Europe: the risks associated with wild birds

The infection of wild birds by highly pathogenic strains of avian influenza (AI) virus was virtually unknown – apart from one instance of the disease appearing in common terns in South Africa in 1961 – before the Asian strain of highly pathogenic AI virus (AIV), H5N1, began to expand across the world. Outbreaks of clinical disease in Eurasia have resulted in visible mortality among populations of free-ranging wild birds in a multitude of species.

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