Since the expression of viral RNA polymerase was not detected 1 h after infection, it has yet to be established whether the promoter is recognised by a packaged viral RNA polymerase or by the host RNA polymerase.
sˈɪns ðɪ ɛkspɹˈɛʃən ʌv vˈaɪɚɹəl ˌɑːɹɹˌɛnˈeɪ pˌɑːlɪmɚɹˈeɪz wʌz nˌɑːt dɪtˈɛktᵻd wˈʌn ˈeɪtʃ ˈæftɚɹ ɪnfˈɛkʃən, ɪt hɐz jˈɛt təbi ɪstˈæblɪʃt wˈɛðɚ ðə pɹəmˈoʊɾɚɹ ɪz ɹˈɛkəɡnˌaɪzd baɪ ɐ pˈækɪdʒd vˈaɪɚɹəl ˌɑːɹɹˌɛnˈeɪ pˌɑːlɪmɚɹˈeɪz ɔːɹ baɪ ðə hˈoʊst ˌɑːɹɹˌɛnˈeɪ pˌɑːlɪmɚɹˈeɪz.