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Alberta West Nile virus wild bird surveillance

Description

However, since dead bird surveillance was initiated in Alberta, a great deal has been learned on WNv activity. We now know that suitable conditions for WNv are limited largely to the Grassland... More ≫

Description

However, since dead bird surveillance was initiated in Alberta, a great deal has been learned on WNv activity. We now know that suitable conditions for WNv are limited largely to the Grassland Natural Region of southeastern Alberta where conditions are most favourable for development of Culex tarsalis. In addition, the number of dead corvids each summer has declined significantly since WNv first appeared, although the populations of crows and magpies did not decline. It is likely that crows and magpies, as well as all the other birds species exposed to WNv, adapted to the presence of WNv in the ecosystem and developed protective immunity. The monitoring of dead birds was discontinued in 2007 because it no longer provided new information about WNv; however testing is conducted on suspect cases as a response to public concern.

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West Nile virus : Alberta’s response plan (2006)

Description

Under the leadership of the Provincial Health Office, five government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose... More ≫

Description

Under the leadership of the Provincial Health Office, five government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose of the plan is to minimize the risk of WNv infection to humans. A number of coordinated activities will provide a comprehensive program for surveillance or monitoring for WNv in Alberta, communicating with the public and with professionals, and targeted mosquito control activities.

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West Nile virus : Alberta’s response plan (2005)

Description

Under the leadership of the Provincial Health Office, five government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose... More ≫

Description

Under the leadership of the Provincial Health Office, five government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose of the plan is to minimize the risk of WNv infection to humans. A number of coordinated activities will provide a comprehensive program for surveillance or monitoring for WNv in Alberta, communicating with the public and with professionals, and targeted mosquito control activities.

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Estimating the infection rate of West Nile virus in Alberta

Description

This report presents the results from the West Nile virus (WNv) Seroprevalence Study, undertaken by Alberta Health and Wellness during March through June 2004. During 2003, there were 275... More ≫

Description

This report presents the results from the West Nile virus (WNv) Seroprevalence Study, undertaken by Alberta Health and Wellness during March through June 2004. During 2003, there were 275 confirmed human cases of WNv in Alberta. For every clinical infection there are likely many more undetected infections in humans since the majority of WNv infections have no symptoms. The study was conducted to estimate how many Albertans had actually been infected with the virus. The study also investigated the knowledge and attitudes of Albertans about WNv and about measures used to protect against infection.

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West Nile virus in Alberta : what happened in 2004??

Description

The story of West Nile virus in North America is a very recent one. The virus arrived in New York in 1999 and established populations in migratory birds on the Atlantic Flyway. it then... More ≫

Description

The story of West Nile virus in North America is a very recent one. The virus arrived in New York in 1999 and established populations in migratory birds on the Atlantic Flyway. it then systematically increased its population and spread to birds on the other primary migration pathways, moving steadily westward to the Mississippi, Central and by 2004, the Pacific Flyway. The virus infects birds of many species without causing visible illness, but cases fatal infections in Corvidae (crows, jays and their relatives). It can occasionally spill over and infect horses and humans, and can cause rare fatal results.

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Sage-grouse & West Nile virus in Alberta

Description

The greater sage-grouse is one of the most marvelous animals on the short-grass prairie. Each spring, males gather on open clay pans and do their dance of love. They joust for the preferred... More ≫

Description

The greater sage-grouse is one of the most marvelous animals on the short-grass prairie. Each spring, males gather on open clay pans and do their dance of love. They joust for the preferred territory at the centre of the dancing ground (or lek), and then make complete fools of themselves. The males stand on their tiptoes, flex their tail and wings, puff up their chest and inflate the bright yellow air sacs on their throat. They let the air out with a resounding GALUMP which echoes across the prairie and apparently is an irresistible love call to the secretive females. Most of the activity starts in the wee hours of the morning and ends an hour or so after sunrise.

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West Nile virus : Alberta’s response plan (2004)

Description

Under the leadership of the Provincial Health Office, five government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose... More ≫

Description

Under the leadership of the Provincial Health Office, five government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose of the plan is to minimize the risk of WNv infection to humans. A number of coordinated activities will provide a comprehensive program for surveillance or monitoring for WNv in Alberta, communicating with the public and with professionals, and targeted mosquito control activities.

Tags

West Nile virus : Alberta’s response plan (2003)

Description

Under the leadership of the Provincial Health Office, four government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose... More ≫

Description

Under the leadership of the Provincial Health Office, four government departments have expanded and updated a coordinated provincial plan for responding to West Nile virus in Alberta. The purpose of the plan is to minimize the risk of WNv infection to humans. A number of coordinated activities will provide a comprehensive program for surveillance or monitoring for WNv in Alberta, communicating with the public and with professionals, and targeted mosquito control activities.

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