UK patient 'free' of HIV

A UK man's HIV has become "undetectable" following a stem cell transplant - in only the second case of its kind. The patient, who was being treated for cancer, has now been in remission from HIV for 18 months. However researchers say it is too early to say the patient is 'cured'. We speak to our health reporter about the implications of this news for the future treatment of HIV.

Also we report on the nationwide strikes in Sudan; the latest protest against President Omar al-Bashir. We hear from people in the country as demonstrations against the government enter their eleventh week.

And the world-famous carnival is getting under way in Rio de Janeiro. But this year has seen politics become an increasing part of the festivities. We find out why.

(Photo: Illustration of HIV virus. Credit: Getty Images)