Two forms of bacteria that can be passed by ticks, fleas, and mosquitoes may cause symptoms of rage and hyperactivity that doctors can mistake for ADHD, some experts say. The bacterial infections--bartonella and babesia--are often missed on blood tests because they are not immediately obvious. But this oversight means that some children may be undergoing treatment for ADHD when a simple antibiotic would be more appropriate, says parasite infection researcher Dr. James Schaller. In this article...