Coronavirus: China fears new COVID-19 ripple will lead to second wave

Today the authorities confirmed another 21 locally transmitted cases of COVID-19 in the capital, bringing the total in the latest cluster to 158. And they are not confined just to Beijing - cases have been recorded in provinces across China. The first question is how this happened. Life in China had been getting back to normal, with people going back to work and restaurants reopening. But the country still had some of the strictest COVID-19 measures in place. Foreigners are still banned from entering the country, with some very limited exceptions.