CAIE A Level Biology 9700 · Infectious diseases

Infectious diseases: describe question

Describe4 marksStandard

Describe the pathogen that causes each of the following infectious diseases. For each disease, state the name of the pathogen and its type (e.g. bacterium, virus, protoctist).

Disease	Name of pathogen	Type of pathogen
Cholera
Malaria
Tuberculosis
HIV/AIDS

How this question is marked

4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.

Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.

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