Tokyo Olympics: Your questions answered

Our expert answers your questions on the Tokyo Olympics, as the opening ceremony takes place. More than 11,300 athletes from 207 nations will compete over the next couple of weeks in Japan, but there will be no crowds in the stadiums due to Covid-19.

Also, we speak to two Olympians about how they are feeling ahead of the games. Liberian sprinter Joseph Fahnbulleh and Australian equestrian Mary Hanna will both be competing in Tokyo.

And we go through the latest coronavirus stories with Dr Megan Murray, who is Professor of Global Health and Social Medicine at Harvard University.

(Photo: The Tokyo 2020 Olympics Opening Ceremony. Credit: Reuters/Peter Jebautzke)