Four scenarios for the pandemic's next phase

So, where's this pandemic actually heading? It's a good question and quite hard to answer as... well... no one can tell you the future. But experts have never shied away from making some educated guesses, including SAGE, the Scientific Advisory Group for Emergencies in the UK. They've published four scenarios ranging from as good as it can be given the circumstances to downright doom and gloom. So on today's Coronacast, what does SAGE think we can expect from the pandemic over the next few years and which scenario is most likely to be right?