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  • Title: Reverse genetics approach towards understanding pathogenesis of H5N1 Hong Kong influenza A virus infection.
    Author: Hatta M, Neumann G, Kawaoka Y.
    Journal: Philos Trans R Soc Lond B Biol Sci; 2001 Dec 29; 356(1416):1841-3. PubMed ID: 11779382.
    Abstract:
    In 1990, Palese and colleagues established a method (reverse genetics) that allowed one to generate influenza virus containing a gene segment derived from cloned cDNA. Although this method contributed tremendously to our understanding of influenza pathogenesis, the requirement of helper viruses limited its use in many experimental settings. Recently, we and others established systems for the generation of influenza viruses entirely from cloned cDNAs. These systems require only DNA cloning and transfection techniques, and can therefore be easily implemented by laboratories working in the fields of molecular biology and virology. Thus, for the first time, a system is now available that allows highly efficient generation of influenza virus without technical limitations. Using this technology, we generated the same strain of H5N1 influenza viruses that caused an outbreak in Hong Kong in 1997, killing six people.
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