Officials at the World Health Organization said Monday that of about 80,000 people who have been sickened by COVID-19 in China, more than 70% have recovered and been discharged from hospitals.Patients are typically released when they test negative twice for the virus within 24 hours, meaning they're no longer carrying the virus, although some countries may be using a slightly different definition that may include when people have no more respiratory symptoms or a clear CT scan.The World Health Organization said it could take considerably longer for people to be "recovered," depending on the severity of the disease.Dr. Mike Ryan, the World Health Organization's emergencies chief, said it can take up to six weeks for people to fully recover from COVID-19 infections, which could include pneumonia and other respiratory problems in serious cases. He said the numbers of reported patients have not always been systematically provided to World Health Organization although the U.N. health agency is asking every country with cases for further information.