Omicron: UK's face mask crackdown - will it work?

<p>Mouth-and-nose coverings are back on London’s tube and rail network, and in shops, with the threat of £200 fines for breaking the rules. Amid concerns about vaccine efficacy against Omicron, we get the latest from Evening Standard Health Editor Ross Lydall on masks, hospitalisations, and how Transport for London's finances are suffering.</p> &#10;&nbsp;<br /><hr><p style='color: grey; font - size: 0.75em; '>See <a style='color: grey; ' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for privacy and opt-out information.</p>