Zhong Nanshan warns of potential second wave of COVID-19 infections

Zhong Nanshan, China's top respiratory expert, in an interview with CNN on Saturday said China still faces the "big challenge" of a potential second wave of COVID-19 infections. He added the lack of immunity among the community is a serious concern as the race to develop a vaccine continues.

Zhong said authorities should not be complacent, with the danger of a second wave of infections looming large. Fresh clusters of coronavirus cases have emerged across China in recent weeks, in Wuhan as well as the northeastern provinces of Heilongjiang and Jilin.

"We are facing a big challenge, it's not better than other countries I think at the moment," Zhong said, adding the majority of the nation are still susceptible to COVID-19 because immunity is lacking.