ðə kəntˈɪnjuːd ɪmˈɜːdʒəns ʌv ðiːz sˈɪmptəmz, haʊˈɛvɚ, ᵻvˈɛntʃuːəli lˈɛd tə ðɪ ˌæksɪdˈɛntəl ɛkspˈoʊʒɚ bˌiːɪŋ dɪtˈɛktᵻd ɪn mˈɑːɹtʃ tˈuː θˈaʊzənd wˈʌn.
The continued emergence of these symptoms, however, eventually led to the accidental exposure being detected in March 2001.