An HIV infected person initially looks normal and perfectly healthy. The symptoms of AIDS develop after few years and they include:

• Long standing, unexplained fever ( › 1 month).

• Unexplained diarrhoea (› 1 month).

• Persistent cough (› 1 month).

• Persistent unexplained fatigue and weight loss of more than 5 kg within short period.

• White blotches in the mouth or on tongue.