Where does he say the worst outbreaks of cholera took place?
were there not many, if any, cases of cholera?
How does he explain the differences?
What does he believe were the causes of cholera? Look back at Source 1
you think that people in 1848 had any better idea of the ways to
treat cholera than they had had in 1832?
all the suggestions made in source 3
and 4 had been followed,
would this have prevented an outbreak of cholera?