Slight mutation found in bird flu virus
Associated Press
June 23, 2006

The World Health Organization has detailed the first evidence that a person likely caught the bird flu virus from a human, then passed a slightly mutated version to another person. But experts said Friday the genetic change does not increase the threat of a pandemic.

The investigation said the mutation of the H5N1 strain of the virus occurred in a 10-year-old Indonesian boy who was part of the largest cluster ever reported. The index case is believed to have been infected by poultry. She then likely passed it to the boy and five other blood relatives. The boy is then thought to have infected his father, whose samples showed the same mutation, according to the report obtained by The Associated Press.

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