Have a seafood allergy? You might want to steer away from eating cicadas. Here's why

A wide swath of the U.S. has become entrenched in a cicada frenzy as trillions of the noisy but harmless insects emerge from the ground. Illinois is at the center of it all, as it’s one of two states experiencing a rare double-brood emergence. While some people might try to avoid cicadas at all costs, others are seeking them out,...