Cities in central China have hastily drawn up plans to isolate migrant workers fleeing to their home towns from the country’s largest iPhone factory, amid fears they will spread coronavirus after leaving the plant in Covid-hit Zhengzhou. Videos shared on Chinese social media showed people who are allegedly workers at the Foxconn plant climbing over fences and carrying their belongings along a road. It was previously reported that a number of workers had been placed under quarantine because of an outbreak of the disease. Foxconn, a supplier to Apple that is headquartered in Taiwan, has about 200,000 workers at the...