By Jane Dreaper Health correspondent, BBC News
People with HIV will be given medication much earlier
New guidelines for HIV treatment could see millions more people in developing countries getting life-saving medicine.
The World Health Organization (WHO) is recommending that patients start taking medication at a much earlier stage of the disease.
The WHO says the guidelines, which are being launched at an international Aids conference in Kuala Lumpur, could help avert an extra 3m Aids deaths by 2025.
The charity MSF welcomed the move – but said extra investment would be needed.