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Saturday, March 25, 2006

 

Human-to-human transmission of H5N1 highly unlikely

`H5N1 virus prefers to settle in cells deep within the lungs, rather than in the upper respiratory tract, as happens with human flu strains, two new studies have found.

H5N1 virus prefers to settle in cells deep within the lungs, rather than in the upper respiratory tract, as happens with human flu strains, two new studies have found.

That may help explain why human-to-human transmission of the bird flu virus has so far not happened — and might not happen in the future, Forbes.com reported Wednesday.

Since 2003, the H5N1 virus has been found in Asia, Europe, Africa and the Middle East, and has led to the slaughter of tens of millions of domestic fowl. While infection has primarily been limited to birds, the virus has killed 103 people via bird-to-human transmission.’




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