IB Biology SL C3.2.11 Hiv Transmission Questions

Explore how infected blood, sexual fluids and breast milk transmit HIV, and how condoms, abstinence and sterile needles reduce fluid exchange in IB Biology SL C3.2.11.

Exam points

Explain that HIV transmission requires exchange of infected blood, semen, vaginal fluids or breast milk with a susceptible person, including blood products, sexual activity and mother-to-child transmission.
Explain how condoms or abstinence and sterile single-use needles reduce HIV transmission by preventing exchange of infected fluids.

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Study C3.2.11—HIV transmission conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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