<prompt> Nyorai kupfuurira kweiyi ndima - Munenge muna 1850 kunaka kwemvura yokunwa kwakava nhau yeitiro hanya yavose, uye John Snow akaongorora mugariro wemvura muna 1849. Paramende yakapa Mutemo Wemvura weMetropolis muna 1852 kuti iite gadziriro dzokuchengetedza kugoverwa kweMetropolis kwemvura yakachena uye ine utano. Pasi pomutemo wacho, zvaiva zvisiri pamutemo kuti kambani ipi neipi yemvura itore mvura yokushandisa mudzimba kubva mumvura inoyerera yeThames pashure pa 31 August 1855, uye kubva pa 31 December 1855 mvura yose yakadaro yaidiwa kuti inyatsosefa. Vatungamiriri vakanga vatosarudza kare muna 1847 kutamisira mvura yokuisa mumadziva avo kuSeething Wells. Zvivako zvakapedzwa muna 1852, uye Lambeth yakabatanidzwa ikoko ichishandisa mapombi ayo kuguta neChelsea Waterworks Company. Zvivako izvi zvaibatsira John Snow pakuongorora nhamba dzevanhu panguva yaipararira korera  <response>: , nzvimbo yacho yaiva kumusoro kwerwizi kupfuura dzimwe nzvimbo dzinoshandiswa mvura uye saka yaiva nemvura yakachena, zvichiita kuti vanhu vashoma vafe nekorera. 