teffectiveness of influenza vaccination is well established for persons aged 65 years The cost and older. A study considered cost effectiveness and cost-benefit for healthy adalts less than 65 years old. A randomized experiment was run. The treatment group received an influenza vaccination, while the control group received a placebo. Any favorable benefits of influenza vaccination last only for one flu season (a year). We consider the costs and benefits of influenza vaccination for 1,000 adults when per person - The cost of vaccination (including lost work time) is $25. - The cost of influenza illness (including lost work time) is $200. Influenza vaccination reduces the probability of getting influenza from 0.24 to 0.14. (a) Perform a cost-benefit analysis of influenza vaccination. Does it favor vaccination? (b) What is the cost of influenza vaccination per case of flu avoided? (o0 Give a verbal definition of a QALY. (i) What is the advantage of using QALY's compared to cost-benefit analysis