As many countries slowly reopen their economy amid the coronavirus pandemic, medical experts are voicing mixed signals with some saying the coronavirus has disappeared in their countries and others warning of a second wave. The return to old habits too soon risks a second wave in the fall or winter.

Zhang Boli, an academician of the Chinese Academy of Engineering and president of Tianjin University of Traditional Chinese Medicine, is one of the leading medical experts in the fight against COVID-19 with a combination of traditional wisdom and modern technology. He said the second wave may return in the fall or winter along with influenza.