Here we have an apotropaic situation, where a god originally bringing the plague was invoked to end it.
hˈɪɹ wiː hæv ɐn ɐpˌɑːtɹəpˈeɪɪk sˌɪtʃuːˈeɪʃən, wˌɛɹ ɐ ɡˈɑːd ɚɹˈɪdʒɪnəli bɹˈɪŋɪŋ ðə plˈeɪɡ wʌz ɪnvˈoʊkt tʊ ˈɛnd ɪt.