By Jessica Scott-Reid, Sentient Media The concept of a blood-sucking critter causing its human hosts to develop an allergy to some of their favorite foods, like hamburgers and pepperoni pizza, sounds like the stuff of science fiction. But alpha-gal syndrome, or the tick borne allergy to meat and sometimes dairy, is very real — and on the rise, in part due to climate change. How allergies develop after a lone star tick bite is still being researc…