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HIV is a virus which invades the cells of the immune system - Scottish Highers Human Biology - Question 12 - 2015
Question 12
HIV is a virus which invades the cells of the immune system. People infected with HIV may not show symptoms for many years. AIDS is the condition which may develop f... show full transcript
Worked Solution & Example Answer:HIV is a virus which invades the cells of the immune system - Scottish Highers Human Biology - Question 12 - 2015
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Calculate the percentage of HIV-infected people who died from AIDS in 2010.
Answer
In 2010, approximately 1.5 million people died from AIDS and there were around 32 million people infected with HIV. The percentage can be calculated as follows:
ext{Percentage} = rac{ ext{Number of deaths}}{ ext{Total HIV-infected}} imes 100 = rac{1.5 ext{ million}}{32 ext{ million}} imes 100 \ ext{Percentage} \\approx 4.69\%Step 4
Describe the evidence from the graph which suggests that the rate of people becoming infected with HIV was greatest between 1993 and 1995.
Answer
The evidence from the graph shows that the steepest/steeper part of the HIV infected graph between 1993 and 1995 indicates a rapid increase in the number of HIV infections. During this period, the graph line sharply increases, suggesting a greater rate of infection compared to the years before and after.