Recombination Resulting in Virulence Shift in Avian Influenza Outbreak, Chile oleh David L. Suarez, Dennis A. Senne, Jill Banks, Ian H. Brown, Steve C. Essen, Chang-Won Lee, Ruth J. Manvell, Christian Mathieu-Benson, Valentine Moreno, Janice C. Pedersen, Brundaban Panigrahy, Herman Rojas, Eric Spackman, Dennis J. Alexander