The Latest: China says it’s time to cooperate against virus

The Latest on the coronavirus pandemic. The new coronavirus causes mild or moderate symptoms for most people. For some, especially older adults and people with existing health problems, it can cause more severe illness or death.TOP OF THE HOUR:— Countries and U.S. states are moving to reopen gradually amid warnings that acting too quickly could enable the virus to come back with a vengeance.— Serbia lets elderly outside for the first time in more than a month.— South Africa to