RT Journal Article SR Electronic(1) A1 Begg, N A1 Joseph, C YR 1997 T1 Influenza A H5N1 in Hong Kong: update 23 December JF Weekly releases (1997–2007) VO 1 IS 35 SP 1002 OP DO https://doi.org/10.2807/esw.01.35.01002-en UL https://www.eurosurveillance.org/content/10.2807/esw.01.35.01002-en