Highly Pathogenic Avian Influenza Virus (H5N1) in Frozen Duck Carcasses, Germany, 2007
Timm C. Harder, Jürgen Teuffert, Elke Starick, Jörn Gethmann, Christian Grund, Sasan Fereidouni, Markus Durban, Karl-Heinz Bogner, Antonie Neubauer-Juric, Reinhard Repper, Andreas Hlinak, Andreas Engelhardt, Axel Nöckler, Krzysztof Smietanka, Zenon Minta, Matthias Kramer, Anja Globig, Thomas C. Mettenleiter, Franz J. Conraths, and Martin Beer
Author affiliations: Friedrich-Loeffler-Institut, Isle of Riems, Germany (T.C. Harder, E. Starick, C. Grund, S. Fereidouni, M. Durban, A. Globig, T.C. Mettenleiter, M. Beer); Friedrich-Loeffler-Institut, Wusterhausen, Germany (J. Teuffert, J. Gethmann, M. Kramer, F.J. Conraths); Bavarian Agency for Health and Food Safety, Erlangen, Germany (K.H. Bogner; R. Repper); Bavarian Agency for Health and Food Safety, Oberschleissheim, Germany (A. Neubauer-Juric); Brandenburg State Central Laboratory, Frankfurt/Oder, Germany (A. Hlinak, A. Engelhardt); Agency for Consumer Protection and Food Safety of Lower Saxony, Oldenburg, Germany (A. Nöckler); National Veterinary Research Institute, Pulawy, Poland (K. Smietanka, Z. Minta)
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Figure 2
Figure 2. Phylogetic tree of the hemagglutinin (HA) gene (full-length sequence) of highly pathogenic avian influenza virus (HPAIV) (H5N1) detected in poultry from Brandenburg and Bavaria, Germany, in 2007, including sequences of wild birds and poultry from neighboring countries. Sequence of the Czech poultry isolate is supported by GenBank. The tree was constructed by using a minimal-evolution algorithm; numbers represent bootstrap values after 1,000 replications. A maximum-likelihood (ML)–based tree resulted in a similar topology; italicized numbers indicate bootstrap values of the ML tree after 200 replications. Scale bar indicates substitutions per site. The HA sequence of A/chicken/Czech Republic/11242–38/2007 (H5N1) was extracted from GenBank accession no. EU 443553. LPAIV, low pathogenicity avian influenza virus.
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