Tests find milder strain of bird flu
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Wild ducks in Pennsylvania have tested positive for bird flu, but not the deadly Asian strain that has ravaged poultry and killed at least 141 people worldwide, the Agriculture Department said Saturday.
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Doctors have given the all-clear to a worker tested for the potentially deadly H5N1 strain of bird flu on a British farm hit by the virus, the second negative test there.
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A low risk strain of bird flu is discovered at a smallholding in St Helens, Merseyside.
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Four people test positive for a mild strain of bird flu which was first found at a north Wales smallholding.
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Four people have tested positive for bird flu linked to a low-risk strain found in chickens which died on a farm in north Wales, as samples were being taken Saturday from another farm in the area.
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Turkeys at a farm in Virginia had antibodies to a low-risk strain of bird flu but direct evidence of infection has not been found, the U.S. Department of Agriculture said on Wednesday.
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Five people in Japan may have been  infected with the bird flu virus after an outbreak among  chickens in February, but there is no risk they will develop  symptoms and no chance of more infections, the government said  on Saturday.
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The deadly H5N1 strain of bird flu which has killed at least 148 people is showing signs of being able to mutate and develop resistance to the most effective anti-viral drugs and any possible vaccines yet to be produced, a WHO scientist said Thursday.
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A final round of tests on mallard   ducks in Maryland confirmed the birds have a low-pathogenic   strain of the H5N1 virus, the departments of Agriculture and   the Interior said on Tuesday.
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Scientists believe they have found some of the steps needed for bird flu to turn into a pandemic strain.
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Experts confirm the H5N1 bird flu virus outbreak at a Suffolk turkey farm is the Asian strain.
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The deadly H5N1 strain of bird flu found in turkeys in Britain last week &quot;may well be identical&quot; to the virus found in wild geese in Hungary, British officials said.
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An updated diagnostic test can   simultaneously detect whether someone is suffering from an H5   strain of bird flu or seasonal influenza, its developer said on   Tuesday.
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Researchers have developed a new test that can detect bird flu infections in humans within hours. The new rapid test is a significant step forward in what could prove to be the catalyst for an overdue pandemic.
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Scientists have discovered the possible presence of bird flu in wild mute swans in Michigan &#151; but it does not appear to be the most worrisome, highly pathogenic strain, the White House announced Monday.
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Malaysian officials on Saturday were testing three people who fell ill in a village hit by the deadly H5N1 bird flu strain, after international health officials warned that the virus appeared to be entrenched in parts of
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The European Commission has confirmed that the bird flu virus detected at a turkey farm in eastern England was the virulent H5N1 strain.