Trials to test combination of AstraZeneca and Sputnik vaccines

UK and Russian scientists are teaming up to trial a combination of the Oxford-AstraZeneca and Sputnik V vaccines to see if protection against Covid-19 can be improved. Mixing two similar vaccines could lead to a better immune response in people. And the WHO has announced its secured nearly a billion doses of the leading jabs for low and middle income countries. Also in the programme, the BBC's Manuela Saragosa finds out why the UK's ambition to ban live animal exports after Brexit could be difficult to achieve and we hear from China where emotive chat bots are helping combat loneliness. Sasha Twining is joined by Peter Ryan ABC's Senior Business Correspondent in Sydney for comment throughout the programme. PHOTO: Getty Images