No I do not believe the liberal media. I go to direct sources
https://www.sciencedirect.com/science/article/pii/S0006497120336673#
This 2017 study was co-authored by four Regeneron scientists: Davor Frieta, Cagan Gurer, Andrew J. Murphy, George D. Yancopoulos. For this study, human fetal liver obtained from the notorious Advanced Biosciences Resource is used to humanize mice. The humanized mice produce the antibodies used in the mAb cocktail REGEN-COV.
I’ll let you do your own research on Advanced Biosciences Reaources and where they obtain the human fetal livers
Yancopoulos is co-founder, president and chief scientific officer of Regeneron Pharmaceuticals.
At the bottom of the study I linked above is the following statement:
“The authors thank the Regeneron Pharmaceuticals’ Velocigene team for generating human IL-6 knock-in mice“
Go to Regeneron’s website and read about the use of the VelociGene and Velocimmune technology. Hint: Mice are literally humanized with cells and tissues obtain from aborted children. The info is all there for you to see and speaks for itself.
Where is the direct relation to the production of monoclonal antibody treatment?