How Sexually Transmitted Infections (STIs) Spread (Teach This Topic)

This guide supports calm, factual teaching about how sexually transmitted infections (STIs) can spread. It explains why transmission routes vary, why symptoms and appearance are unreliable, and how condoms, testing, treatment and confidential sexual-health services can reduce harm and stigma. It is designed for home education with learners aged 11 to 16 and does not require personal disclosure or practical sexual-health activities.

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