Hold on to your shares. The 2022 Noble Laureate Svante Paabo discusses presence and absence of CCR5 as having inverse roles in Covid and HIV in his Noble lecture. Listen to all. But the mention of CCR5 comes in about 49min mark. The Noble prize was for dating technique in the study of human evolution. 1.2% of us have Neandertal genes. Yes, that includes you.

https://www.youtube.com/watch?v=FXgW1WZV0rc