From the study:
“Fetal liver samples were obtained from the Human Fetal Tissue Repository at Albert Einstein College of Medicine, Bronx, NY, and from Advanced Biosciences Resources, Alameda, CA.”
https://www.sciencedirect.com/science/article/pii/S0006497120336673#ceack10
Right, but that was to produce IL-6 mice in 2017 for a different research purpose that has nothing to do with their Covid monoclonal antibody.
They created a completely different genetically modified mouse line to produce the covid b-cell antibodies used in the monoclonal treatment. That would require human blood cells from survivors. You think they got that from aborted fetuses when there are thousands of adult survivors donating blood and plasma for research?
Regeneron flatly denies the use of any fetal tissue in the production of their treatment and state that HEK tissue was used only in the efficacy testing portion, not in development or production. HEK tissue is a Human Embryonic Kidney immortal cell line, not liver as in your source study which is not germane to the discussion. It’s a misconstrued red herring.