> EXPOSURE TO TOXIC PFIESTERIA COULD CAUSE MEMORY LOSS

The Aug. 15 issue of the medical journal Lancet reports research that suggests a toxic microorganism deadly to fish also can cause memory and attention loss in humans. The report says doctors have examined people who complained of medical problems after coming into contact with the toxic organism Pfiesteria on the Pocomoke River. Pfiesteria is a harmless one-celled organism unless something triggers it to change form and emit a poison that eventually kills fish.

First in-depth study into Pfiesteria problem
.... http://www.monterey.edu/students/im/kruegerpaule/world/RedTideIndex.html