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The birds showed signs of physical trauma, leading one ornithologist with the Arkansas Game and Fish Commission to speculate the blackbirds might have been killed by lightning, high-altitude hail or possibly fireworks. The birds were sent to laboratories in Georgia and Wisconsin for necropsies to determine the cause of death.
H5N1 influenza virus is a type of influenza A virus which mostly infects birds. H5N1 flu is a concern because its global spread may constitute a pandemic threat. The yardstick for human mortality from H5N1 is the case-fatality rate (CFR); the ratio of the number of confirmed human deaths resulting from infection of H5N1 to the number of those confirmed cases of infection with the virus.
In September, Egypt and Sudan joined the list of nations seeing a resurgence of bird deaths due to H5N1. [citation needed] In November and December, South Korea and Vietnam joined the list of nations seeing a resurgence of bird deaths due to H5N1; February/March 2006 - A dead cat infected with the H5N1 bird flu virus was found in Germany. [26]
Wildlife experts in at least six states are investigating the cause of the bird deaths. Birds acting blind when approached, dying by hundreds. Scientists don't know why.
The Beebe, Arkansas bird deaths were repeated again on New Year's Eve of the following year, 2011, with the reported number of dead birds being 5,000. [14] On 3 January 2011, more than five hundred starlings, red-winged blackbirds, and sparrows fell dead in Pointe Coupee Parish, Louisiana. [15]
Researcher Eve Thomason, of Boise State, autopsied “every single bird” discovered by teams in four states. “And because of that, she found stuff that was unexpected,” a fellow researcher said.
T he threat of bird flu to humans appears to be growing. As outbreaks of H5N1—a dangerous strain of avian influenza—continue to affect cows in the U.S., Canada, South America, Europe, and Asia ...
Uploader scaled the raw numbers of bird deaths into portions of 100,000 deaths, so that most numbers displayed in the chart are small whole numbers. Technical note: most SVG code was automatically generated by the "Horizontal bar charts" spreadsheet linked at User:RCraig09/Excel to XML for SVG. Additions and adjustments were made in a text editor.