The World Health Organization marked the fifth anniversary of the emergence of COVID-19 on Tuesday by reiterating its call for China to release the data it holds and allow outside access.

The World Health Organization has urged China to share data to help understand the origins of Covid-19, five years on from the start of the pandemic in the Chinese city of Wuhan.

China has shared the most COVID-19 data and research results in the international community, its foreign ministry said on Tuesday, after the World Health Organization repeated its call for more information and access.