the scenarios for curbing omicron are an echo of lockdown controls from earlier this year, including closing indoor hospitality and limits on mixing of households. i think the longer we wait, the more problematic this is going to be. we have learned from previous experience, surely, that if we dither and delay, we get ourselves into more trouble. the problem here is, of course, we don't fully understand the implications of the omicron pandemic and infection in this country, in terms of severe disease. and that is the dilemma for ministers — do they wait until the threat from omicron becomes clear and hope to avoid lockdown measures, or act now as a precaution and risk the wrath of many in their own party and beyond westminster? fergus walsh, bbc news. let's speak now with professor martin mckee, professor of european public health at the london school of hygiene and tropical medicine.