Hours ticked as 50-year-old Lu Yuejin struggled to get past the police checkpoint on the bridge over the Yangtze-river and out of Hubei province, which is on virtual lockdown as China scrambles to control a coronavirus outbreak. Lu, a farmer from a village on the Hubei province side of the bridge, was trying to gain passage for her daughter, 26-year-old Hu-Ping, who has leukemia.