The HM [humanized mice] are created by surgical implantations of human tissue into mice that have multiple genetic mutations that block the development of the mouse immune system at a very early stage. The absence of the mouse immune system allows the human tissues to grow and develop into functional human tissues

That's right in the article.

People get all pissy with live human experimentation of unit 731 fame.

So mice have similar genetic make up to humans (in some areas) that they can then use for testing.

Broad and easy to understand.

Monoclonal antibody therapy

This is a combination of antibodies, made by the company Regeneron, which mimic our own immune response.

The antibodies physically stick to the coronavirus so they can't get inside the body's cells and they make the virus more "visible" to the rest of the immune system.

Regeneron's treatment was developed using cells derived from an aborted foetus, which are used to test the antibodies' ability to neutralise the coronavirus.

The Trump administration suspended federal funding in 2019 for future projects using foetal tissue from abortions. The cells used in Regeneron's treatment were from a foetus aborted in the 1970s, so predating that move.



[link to www.bbc.com (secure)]

For example, the above was used on Trump while he was getting treatment for covid.