believe, kissing a frog could turn him into a prince. In real life, touching them can kill the creatures and cause serious problems for humans too. April is National Frog Month, and while most people probably know that touching frogs and toads won't give you warts, frogs can transmit diseases. They can give humans tapeworm cysts and salmonella poisoning, said Jeremy Goodman, director of the Turtle Back Zoo in West Orange, New Jersey. Both can cause serious complications if not treated immediately, he said. Human hands have natural salts and oils that can irritate a frog's skin, so handling the animals with dry hands can cause severe problems for them, even death.