BEIJING : China and the World Health Organization are discussing plans to trace the origin of the coronavirus outbreak following a visit to the country by two experts from the UN agency, the foreign ministry said Tuesday.China foreign ministry spokesperson Wang Wenbin told reporters the experts conducted “preparatory consultations on scientific research cooperation on virus tracing" during their two-week stay, which ended Sunday.Their talks touched on research in the areas of population, environment, molecules, animal traceability and transmission routes of the coronavirus, as well as plans for further scientific research, Wang said.The two sides also further investigated the possible animal source, intermediate host and transmission route.