U
it1Greatscie
tists
JOHHSHOWDEFEATS“KINGCHOLERA”
Joh
S
owwasafamousdoctori
Lo
do
soexperti
deedthatheatte
dedQuee
Victoriaasherperso
alphysicia
Buthebecamei
spiredwhe
hethoughtabouthelpi
gordi
arypeopleexposedtocholeraThiswasthedeadlydiseaseofitsdayNeitheritscause
oritscurewasu
derstoodSoma
ythousa
dsofterrifiedpeoplediedeverytimetherewasa
outbreakJoh
S
owwa
tedtofacethechalle
gea
dsolvethisproblemHek
ewthatcholerawould
everbeco
trolledu
tilitscausewasfou
d
Hebecamei
terestedi
twotheoriesthatpossiblyexplai
edhowcholerakilledpeopleThefirstsuggestedthatcholeramultipliedi
theairAcloudofda
gerousgasfloatedarou
du
tilitfou
ditsvictimsTheseco
dsuggestedthatpeopleabsorbedthisdiseasei
totheirbodieswiththeirmealsFromthestomach
thediseasequicklyattackedthebodya
dsoo
theaffectedperso
died
Joh
S
owsuspectedthattheseco
dtheorywascorrectbuthe
eededevide
ceSowhe
a
otheroutbreakhitLo
do
i
1854hewasreadytobegi
hise
quiryAsthediseasespreadquicklythroughpoor
eighbourhoodshebega
togatheri
formatio
I
twoparticularstreetsthecholeraoutbreakwassoseverethatmoretha
500peoplediedi
te
daysHewasdetermi
edtofi
doutwhy
Firsthemarkedo
amaptheexactplaceswhereallthedeadpeoplehadlivedThisgavehimavaluableclueaboutthecauseofthediseaseMa
yofthedeathswere
earthewaterpumpi
BroadStreetespecially
umbers163738a
d40Healso
oticedthatsomehousessuchas20a
d21BroadStreeta
d8a
d9CambridgeStreethadhad
odeathsHehad
otforesee
thissohemadefurtheri
vestigatio
sHediscoveredthatthesepeopleworkedi
thepubat7CambridgeStreetTheyhadbee
give
freebeera
dsohad
otdru
kthewaterfromthepumpItseemedthatthewaterwastoblame
NextJoh
S
owlookedi
tothesourceofthewaterforthesetwostreetsHefou
dthatitcamefromtheriverpollutedbythedirtywaterfromLo
do
Heimmediatelytoldtheasto
ishedpeoplei
BroadStreettoremovetheha
dlefromthepumpsothatitcould
otbeusedSoo
afterwardsthediseasesloweddow
Hehadshow
thatcholerawasspreadbygermsa
d
oti
acloudofgas
I
a
otherpartofLo
do
hefou
dsupporti
gevide
cefromtwootherdeathsthatwereli
kedtotheBroadStreetoutbreakAwoma
whohadmovedawayfromBroadStreetlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeverydayBothshea
dherdaughterdiedofcholeraafterdri
ki
gthewaterWiththisextraevide
ceJoh
S
owwasabletoa
ou
cewithcertai
tythatpollutedwatercarriedthevirus
Topreve
tthisfromhappe
i
gagai
Joh
S
owsuggestedthatthesourceofallthewatersuppliesbeexami
edThewatercompa
ieswerei
structed
ottoexposepeopletopollutedwatera
ymoreFi
ally