Luoyang, a city of 7 million, has closed various entertainment venues, including cinemas. Shangqiu, with nearly 8 million residents, has suspended in-person classes at all primary and middle schools.
Although no local infections were reported on Wednesday in Yongji, a city in the northern province of Shanxi, authorities there ordered all its 400,000 residents to remain indoors and businesses and schools to suspend activities on Thursday, after samples taken from a train station turnstile tested positive for the virus.
The northwestern city of Xian, more than two weeks into a lockdown, reported 63 local symptomatic infections for Wednesday, up from 35 a day earlier but still much lower than the daily case count seen in the last week of December.