World Health Organization (WHO) expert Dmitry Lvov has criticized politicization of tracing the coronavirus origins and recognized China's efforts in virus research.

In an interview with CGTN, the Russian virologist said he has no doubt of the virus' natural origins, and described those who spread the theory of coronavirus being man-made as "not experts, not professionals".

"What they are called are political scientists," Lvov told CGTN. "Our president Vladimir Putin said very aptly that now all political scientists have turned into virologists."