Volume 16, Number 5—May 2010
Dispatch
Transmission of Hemagglutinin D222G Mutant Strain of Pandemic (H1N1) 2009 Virus
Figure

Figure. Phylogenetic relationships of hemagglutinin (HA) 1 sequences of pandemic (H1N1) 2009 viruses in Italy obtained from the National Influenza Centre (NIC)–Istituto Superiore di Sanità (ISS) and the National Center for Biotechnology Information. The NIC-ISS sequences are in italics. Isolates from the index case-patient and his father are indicated in boldface. Amino acid mutations of interest in this study are reported on the nodes. All the NIC sequences obtained in the present study were deposited in the GenBank database under the following accession numbers: (hemagglutinin sequences) GU451262–GU451280; GU576500–GU576502; GU576504; GU576506; GU576508; GU576510; GU576512; GU576514-GU57615; GU576517; GU576519; GU576521-GU576522; GU576524; GU576526-GU576527; GU576529; GU576531-GU576532; GU576534; GU576536-GU576540; GU585403–GU585443; (neuraminidase sequences) GU936490-GU936491. Scale bar indicates proportion of nucleotide substitutions per site.
Members of the Surveillance Group for Pandemic A(H1N1) 2009 Influenza Virus in Italy: Istituto Superiore di Sanitá (ISS) (National Institute of Health): Livia Di Trani, Annapina Palmieri, and Concetta Fabiani; Regional Laboratories (director name in parentheses): Istituto di ricovero e cura a carattere scientifico, Rome (Maria R. Capobianchi); Catholic University, Rome (Giovanni Fadda); Padua (Giorgio Palù); Florence (Alberta Azzi); Palermo (Fabio Tramuto); Triest (Pierlanfranco D’Agaro); Cosenza (Cristina Giraldi); Naples (Ciro Esposito); Ancona (Patrizia Bagnarelli); Turin (Valeria Ghisetti); and Genoa (Filippo Ansaldi).