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HIV is still growing, even when undetectable in blood

A team of international researchers - including scientists from Oxford University - have found that HIV still develops in the body, even when undetected in the blood.

The study challenges previous beliefs about a dormant virus and says it can lay 'undetectable' in patients on potent anti-retroviral drugs and still grows in the lymphoid tissue.

The findings give a new perspective on where and how the virus can be targeted, revealing new avenues for more effective HIV treatment.

Researchers say drugs need to penetrate in areas of the lymphoid tissue to cure HIV.

The study is exciting because it really changes how we think about what is happening in treated patients. It helps explain why some strategies that tried to clear the reservoir have failed."

– Professor Angela McLean, Professor of Mathematical Biology, Oxford University

By learning more about how HIV continues to exist within treated individuals, we are one step closer to finding a cure."

– Dr Helen Fryer, Oxford Martin School, Oxford University

Tim Peake spacewalk ends early for safety reasons

Tim Peake's historic spacewalk outside the International Space Station had to be cut short for safety reasons.

Former Army Major Peake became the first official UK astronaut to go on a spacewalk and was due to fix a broken solar shunt, which transfers electricity generated by solar panels.

The mission was ended after four of the scheduled six hours because fellow astronaut Tim Kopra reported seeing a water bubble in his helmet.

The walk was still a major landmark for British space exploration and was watched live from Tim's primary school in Emsworth, Hampshire.

Our reporter Sam Holder watched Tim start his walk with pupils at Westbourne Primary School.

Sam Holder spoke to Beth Bond - a pupil, Lucy Shortman - a pupil, Steven Potter - headmaster at Westbourne Primary School.

Pictures from the International Space Station are courtesy of NASA.

One small step for Tim Peake, one life changing moment for Kent's school pupils

History was made today - as Sussex army major, Tim Peake, became the first official British astronaut - to walk in space where he fixed a power unit, outside the International Space Station. His space mission was expected to last six and a half hours but was terminated early because of problems with the helmet of his fellow spacewalker, Tim Kopra. But for schoolchildren across the South East the spacewalk provided a 'live' science lesson that was, out of this world. Wellesley House School at Broadstairs in Kent was one school where pupils were watching with great interest. Andrea Thomas has been speaking to some of them, along with teacher Kerry Sabin-Dawson.

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