For a great sci-fi treatment of the dangers of mirror life, see Fantastic Four 5-6 (2023) by Ryan North. Yes, that Ryan North, and no, it's not your "typical" comic book.
Question to any biologists. Do we need to worry about mirror viruses or just mirror bacteria?
Hopefully mirror antibiotics are earlier in the tech tree than mirror life.
Please future humans, do not build mirror life.
Thanks.