Yep, we have all sorts of crazy, messed up mice that are used for biomedical research. Humanized mice[1] typically have genes knocked out that code for some ess

Yep, we have all sorts of crazy, messed up mice that are used for biomedical research. Humanized mice[1] typically have genes knocked out that code for some essential aspect of the immune system. With important genes being made non-functional, the mice end up being immunodeficient. [1]: https://en.wikipedia.org/wiki/Humanized_mouse https://en.wikipedia.org/wiki/Humanized_mouse