These claims by WH site are at least debatable/unsubstanciated:
- "The virus possesses a biological characteristic that is not found in nature."
Furin cleavage sites are common in other types of coronaviruses (like MERS).
- "Data shows all cases stem from a single introduction into humans."
The collected samples suggest there were at least two separate spillover events (Lineage A and Lineage B) at the Huanan Market.
- "If there was evidence of a natural origin it would have already surfaced."
For many viruses we have never found the exact animal/human jump variant or the in-between carriers.
- "The virus possesses a biological characteristic that is not found in nature." Furin cleavage sites are common in other types of coronaviruses (like MERS).
- "Data shows all cases stem from a single introduction into humans." The collected samples suggest there were at least two separate spillover events (Lineage A and Lineage B) at the Huanan Market.
- "If there was evidence of a natural origin it would have already surfaced." For many viruses we have never found the exact animal/human jump variant or the in-between carriers.