C3.2.11—HIV transmission
HIV transmission explains how a specific barrier, pathogen interaction, immune mechanism or treatment response contributes to protection against infectious disease.
- Syllabus
- First assessment 2025
- Objective
- C3.2.11
- Level
- SL
Concept essentials
- HIV transmission has to be linked to the exact pathogen, cell, molecule or population process involved.
- The biological effect of hiv transmission depends on the sequence from trigger to protective outcome.
- Clear distinctions within hiv transmission prevent confusion with neighbouring immune responses.
- Evidence for hiv transmission is strongest when mechanism and consequence are explained together.
ConceptIB Biology SL