WTO investigators supposed to investigate the origin of the virus barred from entering China

The two members had already started, with the WTO saying the problem remained in visa shortages.

However, China has challenged this, saying that the details of the visit, including dates, had yet to be arranged, the BBC writes, follows Periscope.

This long-awaited investigation was also approved after months of negotiations with the WTO.

The virus that was first detected in Wuhan at the end of 2019, with its initial explosion connected to an animal market.

The WTO chief, Tedros Adhanom Ghebrasesus, said he was a very disappointed “that China had not yet finalised the team's permission to arrive.