The World Health Organisation (WHO) on Tuesday released a report on the global tracing of Covid-19 origins, following joint research with China on issues including the pathways of the virus and future investigation in different countries.

A total of 34 experts from the WHO and China jointly conducted 28-day research from Jan 14 to Feb 10 in China's Wuhan, Xinhua news agency reported.

They made an assessment of the likelihood of possible pathways. According to the report, Covid-19 introduction through an intermediate host is "likely...