We've changed the URL from
https://summit.news/2021/08/12/danish-who-chief-says-covid-p... as flaggers and commenters seemed to be reacting particularly strongly to that site.
The story itself is arguably significant new information (https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...), so I've turned off the flags after changing the URL.
Generally on HN we go by article quality rather than site quality (https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...) but in this case I think it is less distracting simply to change the URL. Actually the original domain is banned on HN, the same way most highly politicized sites are (regardless of which politics they practice) but users vouched for this submission, no doubt because they felt the story to be significant.
If anyone comes up with a better URL, we can change it again.
Edit: users in the thread have pointed out these other links (thanks!):
https://www.washingtonpost.com/world/2021/08/12/who-origins-...
https://www.wsj.com/articles/head-of-who-team-investigating-...
Every one of these articles is presenting a somewhat different story and I'm not sure what a good title would be. According to the WaPo and WSJ articles, Ben Embarek wasn't just a WHO official but the leader of the investigation ("Ben Embarek led a team of international scientists on a mission to China") - that seems particularly significant so I've added it to the title above. If anyone comes up with a better (i.e. more accurate and neutral) title, we can change it again.