AIDS: cause, spread and prevention sheet4-mark answer frameWhat is AIDS? Explain how HIV spreads and how AIDS can be prevented.
How to lay out the answer. Follow the frame, then write it in your own words.
- 1 · Define. AIDS (Acquired Immuno Deficiency Syndrome) is caused by HIV, which destroys helper T-cells and weakens immunity.
- 2 · How it spreads.
- Unprotected sexual contact
- Transfusion of infected blood
- Shared needles
- Infected mother to baby
- 3 · Prevention.
- Screened blood only
- Disposable syringes
- Safe behaviour
- Testing and ART for pregnant women
- Awareness
- 4 · Link to daily life. Insist on a new syringe for injections and a new blade at the barber's.
- 5 · Close in one line. There is no cure yet, so prevention and awareness are the best defence. Diagnosis is by ELISA.
Scoring tip: Add one line that HIV does not spread by touch or food. Examiners value it.
