The graph shows the impact of vaccinations on the incidence of whooping cough, a childhood illness, between 1940 and 1990 in Britain. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The graph shows the evolution of whopping cough disease from 1940 to 1990, in relation to the diffusion of the

vaccine

, in fact, we can clearly see a massive diffusion in the years before the uptake of the

vaccine

. We notice two peaks in 1942 and 1950 with approximately 170

hundreds

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hundred

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of

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apply

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infected, but before the outcome of the

vaccine

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,vaccine

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the number of cases fluctuates at least to 140 hundred, with an exception in the period between 1942 to 1947, with a sudden decline of 100 hundred people infected. After 1955 those infected

decrease

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decreased

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rapidly, reaching

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a

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few hundred in 1975, but on the other

side

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,side

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there is a rapid reduction of

vaccine

uptake, that in the

next

years

cause

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caused

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again an increase in the diffusion of

the

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apply

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whooping cough. After

that

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,that

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we can see a very fast increase

of

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in

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the

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apply

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vaccination, to about 90% of the population, in the

next

that

bring

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brings

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to

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apply

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a drastic decrease

of

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in

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ill people.

Finally

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,Finally

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we can say that these two phenomena have an inverse proportional behaviour, to a decrease in

vaccine

percentage stands a rapid increase of the reported cases.