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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