Virologist Dr Kim Roberts and Dimitri Eynikel from Doctors Without Borders join us to examine the new Omicron variant and vaccine inequality. While richer countries are busy administering booster jabs, others are struggling to get even an adequate amount of jabs for their frontline healthcare workers. We look at the scale of the problem, what the solutions are, and discuss how vaccinating more of the world's population is a way of reducing the risk of new variants.The Explainer is brought to you by The Journal. Providing open access to valuable journalism in Ireland has been the aim of The Journal for a decade. You can contribute to ensure we can keep questioning, investigating, debunking, explaining and informing at www.thejournal.ie/contribute/