Hi Eva, All I can tell you is we, this group, at one time had a young man who has attempted suicide with carbon monoxide and he did have PD symptoms, which were much worse then ( about 4 years ago), than mine are now, at 12 years. I don't know whatever happened to him, but I know he was having a very rough time of it. I wouldn't bet money, marbles or chalk that his symptoms didn't worsen!!! just me, Marjorie 67/58/55 At 09:19 AM 10/27/2000 +1300, you wrote: >One of our field officers has asked me for info on people who have >developed PD as a result of cyanide poisoning and carbon monoxide (suicide >attempt) These people have PD like symptoms, ie trouble with swallowing, >speech and balance, and their doctors seem to think it's a kind of >Parkinsons. However, unlike normal PD it's not thought that their symptoms >will worsen. Which makes me think it isn't PD, but some other neurological >condition specifically related to toxins. > >Can anyone enlighten me? > >Thanks > >Eva >