Nuovo soggettario BNCF Biblioteca Nazionale Centrale Firenze Ministero della Cultura
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            • • • • • • • • [Organismi e microrganismi secondo caratteristiche biologiche non tassonomiche]
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         • • • • • Virus
        • • • • Virus a RNA
       • • • Orthornavirae
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     • Insthoviricetes
    ►Articulavirales
         •  Orthomyxoviridae
      • •  Influenza A virus
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