Solutions to these questions can be found here. 1) Justify the change in emphasis from treatment to prevention of a named disease. (5 marks) 2) The graph shows the expected life span (the age to which people are expected to live in years) for people of different ages during the 20th century in one country. There have been many biological developments that have contributed to our understanding of the identification, treatment and prevention of disease. Evaluate the impact of these developments on the expected life span. In your answer, include reference to trends in the data provided. (8 marks)
3) Explain how the contributions of Louis Pasteur and Robert Koch have increased our understanding of the nature and prevention of infectious disease. (6 marks)
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