What this chapter delivers
Connect virus structure, replication, immune effects, latency, testing and treatment in one coherent pathway.
Separate biologically possible routes from ordinary contact that does not transmit HIV.
Link scientific milestones with community activism, access and rights.
Complete chapter index
Every subject has a permanent route and remains visible in server-delivered HTML.
Foundations
The essential biology, terminology and progression of HIV infection.
Transmission
Evidence-based explanations of transmission routes and the factors that influence risk.
What does not transmit HIV
Clear, respectful answers to common fears about everyday contact.
History
The scientific, medical, social and community history of the global HIV response.
Terminology and glossary
Medical, scientific, public-health and community terminology with sources and usage notes.
Evidence and content standard
Records separate essential answers, complete public explanations and professional evidence. Every material claim keeps its source, date, jurisdiction, limitations and change history visible.