Meat is hypoallergenic.
Anyone can be allergic to anything.
Some are much more common than others, true, but some people can be allergic to the weirdest things.
I have heard of this allergy developing as a result of being bitten by certain ticks. It’s real.
Not if you get bit by the tick that causes the allergy.
The tick is in Arkansas, and it’s the one thing about Arkansas that scares me. We moved to Arkansas last year.
https://www.cdc.gov/ticks/alpha-gal/index.html
My former landlord’s wife had this problem. She was fine for decades, got bitten by a tick about 10 years ago and it was bye bye red meat. Her reaction to the smallest amount of red meat, say the size of one slice of pepperoni, would land her in the hospital for a couple of days.
Not an allergy to screw around with.