A-LevelBiologyInfectious diseases9700/12 · Oct/Nov 2017 · Q371 Mark

What is the causative agent and method of transmission of smallpox? [Figure 37.1 - table of causative agent and transmission method for smallpox]

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Acausative agent: Morbillivirus, method of transmission: direct contact

Bcausative agent: Morbillivirus, method of transmission: waterborne

Ccausative agent: Variola, method of transmission: direct contact

Dcausative agent: Variola, method of transmission: waterborne

✓ Correct answer

C: causative agent: Variola, method of transmission: direct contact

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Topic: Infectious diseases, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2017 Paper 1 Variant 2, question 37.

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