CAIE A Level Biology 9700 · Infectious diseases
Table 1 shows the number of confirmed malaria cases in two neighbouring districts in Country X over a three-year period. In Year 2, a large-scale distribution of insecticide-treated bed nets was carried out in District A only.
| Year | District A (cases) | District B (cases) |
|---|---|---|
| 1 | 1200 | 1100 |
| 2 | 800 | 1050 |
| 3 | 750 | 1080 |
Outline the biological, social and economic factors that should be considered when planning the prevention and control of malaria.
7 marks, so the mark scheme is looking for about 7 separate creditworthy points. Making the same point twice in different words earns it once.
Outline means: Give the main points briefly. Less detail than describe, but every key step has to be there. One short line per step, in order. The marks are for coverage, not depth.
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