On 31 Agust 1854 , a cholora outbreak hit the area called Soho in Londen. Many people died in a week.Everybody trapped there selves in their homes
John Snow
cholora
Doctor snow thought cholora was spread by water not air, so he started investigating.
He started with the map of Soho,and marked where the households where people died, he also marked the water pumps.He noticed cluster of deaths around a pump in Broad Street. On enquiring, he found out that even the people who died had used the Broad Street pump.
Doctor Snow convinced the council that the water pump from Broad Street pump was the source of cholera. So the pump handle was removed.
Thank you
Mum don't cry
bacteria
The cholera outbreak had begun with a baby girl in Broad Street . She had been infected from elsewhere . And her mother had dropped the baby's waste , full of cholera bacteria , into the cesspool . But the cesspool was leaky . So the bacteria made its way into the well under the Broad Street pump .
cesspool
Doctor Snow's work helped to convince people that London must get rid of cesspools , and build a proper sewage system , with flush toilets . Work began on the sewage system in 1859. It is being updated today .
better sewage system
Shahad Ali Al-Jeshi G7I
Cholera
cesspools
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