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Avian influenza : a new chapter in an old book

Description

A brief summary of the avian influenza outbreak in wildlife in Alberta in 2022. And an overview of what happened in 2023.

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Avian influenza outbreak in wild birds 2022 : final report : April 1 to October 31

Description

Summary of the 2022 avian influenza wild bird and mammal surveillance results.

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Avian influenza in wild birds in Alberta, 2022

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Updated summaries of ongoing avian influenza surveillance results. Identifies species and location of birds tested to date.

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Avian influenza outbreak, spring 2022. Preliminary report : April to June

Description

In late winter and spring 2021-22, a continental outbreak of highly pathogenic avian influenza (HPAI) involving a North American strain of H5N1 swept across Canada and the USA. This preliminary... More ≫

Description

In late winter and spring 2021-22, a continental outbreak of highly pathogenic avian influenza (HPAI) involving a North American strain of H5N1 swept across Canada and the USA. This preliminary report describes the Alberta response to the outbreak, including the work of the Alberta surveillance program, and lessons learned. It includes summary avian influenza wild bird and mammal surveillance results in 2022.

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Surveillance for high pathogenic avian influenza in dead wild birds in Alberta, 2006

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Eighty-five wild birds found dead in Alberta during the summer 2006 were received as part of the provincial avian influenza surveillance programs. The dead bird program focused on waterfowl,... More ≫

Description

Eighty-five wild birds found dead in Alberta during the summer 2006 were received as part of the provincial avian influenza surveillance programs. The dead bird program focused on waterfowl, shorebirds, and raptors found dead or reported as part of a mortality event in Alberta. In addition, a sample of found dead crows and magpies submitted as part of the West Nile virus surveillance program was tested for avian influenza. Two birds were unsuitable for testing. Of the remaining 83 birds, low pathogenic strains of avian influenza were found in 3 birds: 2 gulls and 1 mallard. Subtypes H5 and H7, which have the potential to develop highly pathogenic strains in domestic poultry, were not found in the dead wild birds tested as part of this program. There is no evidence that the highly pathogenic H5N1 strain causing mortality in parts of Asia, Europe, and Africa has arrived in North America.

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