Coronavirus: When will we have a vaccine?

170 people have now died from the coronavirus outbreak, and a confirmed case in Tibet means it has reached every region in mainland China. Infections have also spread to at least 15 other countries. Our correspondent is in a laboratory where researchers are racing to develop a vaccine to protect people from the virus.

Also, as US President Donald Trump's impeachment trial continues, we'll bring you the latest in our series of conversations speaking to families, young people and teachers across the US to hear some of the discussions happening at home and in classrooms.

And one of our veteran correspondents is leaving the BBC after more than 30 years reporting across the world. Milton Nkozi started and finishes his career in South Africa - reporting through apartheid, Nelson Mandela's release and South Africa's first democratic election. We'll speak to him about the stories he's covered.

(Photo: A man wears a protective mask and goggles as he lines up to check in to a flight at Beijing Capital Airport on January 30, 2020 in Beijing, China. Credit: Kevin Frayer/Getty Images)