The charts shows the influence of vaccinations in the cases of whooping cough in England, from 1940 to 1990. Overview, we can see that the number of cases of whooping cough decrease significantly over the pass of the years due to the start of the vaccinations. Reaching its lower point in 2010, when the number of infected children was near cero.
The reported cases reached its maximus in1940, when the number of cases was approximately 180. 000. Therefore, the number of infected children presented abrupt variations, but the cases never went of below 60000. Nevertheless, around 1955 the vaccination process began, and the number of sick children started to decrease constanly over the years, until 1975 when the number of new cases increase up to 80. 000. Therefore, around 1980, the reported cases started to diminish steadily until 2010, when it reached its lower point of near cero cases.
The charts
shows
the influence of vaccinations in the cases of whooping cough in England, from 1940 to 1990. Overview, we can
see
that the
number
of cases of whooping cough decrease
significantly
over the pass of the years due to the
start
of the vaccinations. Reaching its lower point in 2010, when the
number
of infected children was near cero.
The reported cases reached its maximus in1940, when the
number
of cases was approximately 180. 000.
Therefore
, the
number
of infected children presented abrupt variations,
but
the cases never went of below 60000.
Nevertheless
, around 1955 the vaccination process began, and the
number
of sick children
started
to decrease
constanly
over the years, until 1975 when the
number
of new cases increase up to 80. 000.
Therefore
, around 1980, the reported cases
started
to diminish
steadily
until 2010, when it reached its lower point of near cero cases.