<prompt> Translate the following text to SwahiliIt is most perplexing then, that Sullivan, who is writing about the end of an epidemic, after all, never mentions the word vaccine in his article.  <response>: Hata hivyo, ni jambo la kushangaza sana kwamba Sullivan, ambaye anaandika juu ya mwisho wa janga, baada ya yote, kamwe haitajwi neno chanjo katika makala yake. 