China has blocked the arrival of a team of investigators from the World Health Organization who are researching the origins of the coronavirus, claiming that their visas had not yet been approved. Two scientists had already left their home countries for Wuhan. One of them was sent back home, while the other was remaining in a third country in transit.
WHO Director-General Tedros Adhanom Ghebreyesus said he was very disappointed that China hasn't still granted permission to international experts to visit Wuhan to probe COVID-19 origin. He added that WHO officials are already on their way to China and that agency is "eager to get the mission underway". Tedros further said that China has assured speeding up of internal procedure.