China sticks to zero-Covid policy: Tens of millions endure new lockdown

After first appearing in China more than two years ago, Covid-19 has returned to the Middle Kingdom. The country had largely succeeded in keeping infection and mortality rates in check. But in recent weeks, the Omicron variant has posed a significant challenge to the country's zero-Covid strategy. Once again, harsh lockdowns and restrictions are being enforced. We take a closer look.