<prompt> Translate the following text to EnglishUwezekano wa watu kuambukizwa na hatari ya vifo ya watu wanaokabiliwa na hatari ya kuambukizwa na hatari ya vifo vya watu wanaokabiliwa na hatari ya vifo vya watu wanaokabiliwa na hatari ya vifo vya watu wanaokabiliwa na hatari ya vifo.  <response>: population affected and the mortality risk facing that population are believed to affect the average willingness to pay WTP to reduce the risk. 