ðə fˈækt ðæt ˌɛnˈɛs wˈʌn ɪz ɪnvˈɑːlvd ɪnðə pˌæθoʊdʒˌɛnˈɪsᵻɾi ʌv ˌɪnfluːˈɛnzə ɐ vˈaɪɹəsᵻz mˌeɪks ɪɾ ɐ ɡˈʊd tˈɑːɹɡɪt tʊ ɐtˈɛnjuːˌeɪt ðiːz vˈaɪɹəsᵻz.
The fact that NS1 is involved in the pathogenicity of influenza A viruses makes it a good target to attenuate these viruses.