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.
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.