Moderna Covid vaccine shows nearly 95% protection

Early data shows a new vaccine from Moderna could be 95% effective against Covid-19. Michael Kinch is a vaccine specialist and associate vice-chancellor at Washington University in St Louis, and explains the implications of this latest development in the fight against coronavirus. Also in the programme, the BBC's Vishala Sri-Pathma explores how Sri Lanka has been hit by the pandemic, as it continues to be a political and economic battleground for the US, China and India. Plus, as a SpaceX capsule carrying four astronauts continues its journey towards the International Space Station, following a successful launch from NASA's Kennedy Space Centre in Florida, University of Oxford astrophysicist Dr Becky Smethurst discusses the wider significance of this first commercial flight for the new transport system.