For Personal Use. Only Reproduce with Permission from the Lancet
For Personal Use. Only Reproduce with Permission from the Lancet
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ARTICLES Summary Background An outbreak of highly pathogenic avian influenza A virus subtype H7N7 started at the end of February, 2003, in commercial poultry farms in the Netherlands. Although the risk of transmission of these viruses to humans was initially thought to be low, an outbreak investigation was launched to assess the extent of transmission of influenza A virus subtype H7N7 from chickens to humans.