O-LevelBiologyEcology & Environment5090/11 · Oct/Nov 2017 · Q361 Mark

In 2005 there were an estimated 2.3 million HIV-related deaths worldwide. In 2011 there were an estimated 1.7 million HIV-related deaths worldwide. What is not a possible cause for this trend?

Aincreased access to antiretroviral drugs

Bincreased screening and heat-treatment of blood and blood products for transfusion

Cincreased sharing of needles for intravenous drug use

Dincreased use of condoms for sex

✓ Correct answer

C: increased sharing of needles for intravenous drug use

Oracle Prep sorts past-paper questions by topic, so you can drill Ecology & Environment and see which topics are most likely to come up next.

Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2017 Paper 1 Variant 1, question 36.

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