Semmelweis showed that when the trainees washed their hands in chlorinated lime before each clinical examination, the incidence of puerperal fever among the mothers could be reduced dramatically.
sˈɛmɪlwˌeɪz ʃˈoʊd ðæt wɛn ðə tɹˈeɪniːz wˈɑːʃt ðɛɹ hˈændz ɪn klˈoːɹᵻnˌeɪɾᵻd lˈaɪm bᵻfˌoːɹ ˈiːtʃ klˈɪnɪkəl ɛɡzˌæmᵻnˈeɪʃən, ðɪ ˈɪnsɪdəns ʌv pjˈuːəpɚɹəl fˈiːvɚɹ ɐmˌʌŋ ðə mˈʌðɚz kʊd biː ɹᵻdˈuːst dɹəmˈæɾɪkli.