China releases huge coronavirus study amid hints of outbreak peaking

Medical team members prepare to check in at Hohhot Baita International Airport before leaving for Hubei Province in Hohhot, capital of north China's Inner Mongolia Autonomous Region, on Tuesday, Feb. 18, 2020. The seventh batch of medical workers from Inner Mongolia Autonomous Region to Hubei Province departed Tuesday to help the novel coronavirus control efforts there. (Liu Lei/Xinhua/Zuma Press/TNS)

BEIJING — The largest study of the coronavirus in China so far has concluded that elderly patients and people with pre-existing health conditions are most at risk of dying from COVID-19, as a leading expert predicted that the outbreak was at or near its peak.