Furthermore, a hypothetical generation of SARS-CoV-2 by cell culture or animal passage would have required prior isolation of a progenitor virus with very high genetic similarity, which has not been described. Subsequent generation of a polybasic cleavage site would have then required repeated passage in cell culture or animals with ACE2 receptors similar to those of humans, but such work has also not previously been described.
Just to be sure I’m reading this correctly. Is that saying no lab or virologist has ever indicated having or working with a coronavirus everyone says is present in the bats and ultimately mutated to reach humans?
I think their claim is that labs only (or usually) work with viruses that have been described / that they have published the sequences for. And furthermore that they would have published such GoF work if they had done it (?). Like I said, not very compelling claims, especially because they’re general and unclear.
Just to be sure I’m reading this correctly. Is that saying no lab or virologist has ever indicated having or working with a coronavirus everyone says is present in the bats and ultimately mutated to reach humans?
I think their claim is that labs only (or usually) work with viruses that have been described / that they have published the sequences for. And furthermore that they would have published such GoF work if they had done it (?). Like I said, not very compelling claims, especially because they’re general and unclear.