The Chinese city where the new coronavirus emerged ended its more-than two-month lockdown on Wednesday, even as a small northern city ordered restrictions on its residents amid concern about a second wave of infections. China sealed off Wuhan, a central city of 11 million people, on Jan. 23, a drastic step that came to symbolise its aggressive management of the virus. More than 50,000 people in Wuhan were infected, and more than 2,500 of them died, about 80% of all deaths in China, according to official figures.