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C3.2.18—COVID-19 pandemic data evaluation Topic Practice

C3.2.18—COVID-19 pandemic data evaluation Topic Practice
IB Biology syllabusBiology SL/HLFirst assessment 2025

Students practise critically appraising COVID-19 data for reliability, trend validity, and appropriate calculation of epidemiological metrics.

How this is tested

  • calculate vaccine efficacy from case counts in vaccinated versus unvaccinated cohorts using raw incidence data
  • assess source credibility and confounding variables when interpreting pandemic graphs showing infection
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