i will start with glenys's question.ble, yes. thank you. anita asks, is the virus mutating and if so, will the vaccine be of any use? there are lots of mutations aren't there there there aren't really. there is one main mutation and that is the predominant form of covid—19. and we haven't seen this virus mutate very rapidly, but equally the virus isn't under pressure, because we are not, we don't have drugs and vaccines at the moment trying to eliminate it. so it is possible that it will mutate further, like flu, but at the moment we haven't seen a lot of mutations, if it does mutate sufficiently far away from its current form, then we will need to develop vaccines again, but again, the fact is we are in a very good position, in terms of our speed of being able to develop new vaccines because of the work we have put in on this pandemic. quickly, do viruses upon stains youly become less pathogenic? no they will mutate across all aspects of the generals, and then it is darwin, so survival of the fittest, so they will mutat