A bite from an aggressive tick called the lone star is triggering sensitivity to meat in some adults and children. In some cases, the reaction is life-threatening.
Once confined to the southern part of the U.S., the lone star tick is now being found farther north and west and so are reports of allergic reactions to red meat following a bite.
In this Mayo Clinic Minute, microbiologist Bobbi Pritt, M.D., shows you what a lone star tick looks like and explains how its bite can cause the allergic reaction to meat. Jeff Olsen reports.