http://youtu.be/JXHMcJtU-0w is a video about the Halperin 1990 Lyme in ALS patients study. He found 9 of 19 ALS patients had Lyme antibodies in their blood. He found a background rate in the rest of the population that they came from was 10.5% Was 9 of 19 a "coincidence" and if so, what were the odds? (It is like throwing a dice 19 times and getting 9 sixes) except more improbable. Simply put, the more improbably it is, the more likely lyme bacteria are associated with an ALS like illness.