Two to four of every 10,000 US adults may need hospitalization and intensive care unit (ICU) resources during the COVID-19 pandemic, if events similar to those in Wuhan, China, unfold here, according to a study published today in JAMA Network Open.A coauthor of the study warned that the results demonstrate the gravity of reopening affected areas too soon after lockdown.The comparative effectiveness study analyzed data from COVID-19 patients in Wuhan and Guangzhou, China, during outbreaks from Jan 10 to Feb 29 to determine the effect and timing of infection-control measures on community transmission.While Wuhan waited 6 weeks to implement strict infection-control measures after reporting sustained community transmission, Guangzhou did so