Health Canada compared the efficacies of the LAIV and inacti

Health Canada compared the efficacies of the LAIV and inactivated influenza vaccines in a population of 10 000 individuals. The studies\' data are presented in the following table: New cases of the flu in 2013 What is the cumulative incidence of the flu among vaccinated individuals ? 800 cases/1 000 300 cases/1 000 200 cases/1 000 380 cases/1 000 100 cases/1000

Solution

From the given frequency distribution of vacccinated and non-vaccinated individuals among 10,000 people from Health Canada, we can see the Inactivated and LAIV vaccines cumulatively gives a result of 1000 cases/5000 individuals. From here we can choose the option C. that is 200 cases/1000 individuals.