‘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. The trials, to be held in Russia, will involve over-18s, although it's not clear how many people will be involved.’
Read here (BBC, Dec 11, 2020)
