Are milk and beef allergies related?
Beef allergy in children with cow's milk allergy; cow's milk allergy in children with beef allergy. PUB MED Article.
With many allergies many factors could be involved
Jennifer B at Food Allergy Buzz did a post not so long a go on Connection Between Ticks and Red Meat Allergy
Meat Allergy is somewhat rare but can case as many problems as any food allergy.