The given line graph demonstrates the occurrence rate of whooping cough in the Unite Kingdom during seventy-year period from 1940 to 2010. Overall, the disease began in 1940, and it hit the peak within five years; however, star from 1995 the numbers of whooping cough cases declined to a negligible numbers. It is obvious that once vaccination was introduced, the proportion of the disease decreased significantly, and once it was stopped the disease increased again.
The cases of whooping cough started in the UK in 1940, at around 60000 citizens suffering from it, and it rose incredibly to nearly 1.8 million people. Next, it fluctuated throughout 10-year period.
Vaccination was launched in order to protect spreading the occurring whooping cough around 1957 and it covered 81 percentage of inhabitants during ten years; consequently, the percentage of people affecting the disease dropped abruptly to approximately under 40000. Due to the reduction of vaccination between 1970 and 1980, the cough cases climbed up suddenly again, at about 70000 residences. In next decades, the coverage rate of vaccine covered almost all the citizens, which reached to 94% in the year 2010, and the disease was also almost disappeared.