Stresses of strains: emerging coronavirus variants

<p>It is no surprise that more-transmissible coronavirus variants are <a href="https://www.economist.com/leaders/2021/01/02/what-the-new-variants-of-covid-19-mean-for-human-health?utm_campaign=the-intelligence&amp;utm_medium=podcast&amp;utm_source=third-party-host&amp;utm_content=show-notes" rel="noopener noreferrer" target="_blank">cropping up</a>. We ask how worrisome the strains found in Britain and South Africa are. American authorities have lodged a landmark <a href="https://www.economist.com/united-states/2021/01/02/the-justice-department-accuses-walmart-of-fuelling-the-opioid-crisis?utm_campaign=the-intelligence&amp;utm_medium=podcast&amp;utm_source=third-party-host&amp;utm_content=show-notes" rel="noopener noreferrer" target="_blank">case against Walmart</a> for its role in the country’s worsening opioid crisis—a problem with clearly more than one cause. And dealing with the pile of <a href="https://www.economist.com/business/2021/01/02/how-to-deal-with-leftover-leave?utm_campaign=the-intelligence&amp;utm_medium=podcast&amp;utm_source=third-party-host&amp;utm_content=show-notes" rel="noopener noreferrer" target="_blank">unused vacation days</a> from 2020.</p><p>For full access to print, digital and audio editions of <em>The Economist</em>, subscribe here <a href="http://www.economist.com/intelligenceoffer" rel="noopener noreferrer" target="_blank">www.economist.com/intelligenceoffer</a></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>