This is why you should not leave homework til the last minute! Try the below websites – if you had more time, you could contact the parkinsons association direct and ask them!

Prevalence: There are few reliable data of global prevalence or morbidity of Parkinson’s disease, but it is known to affect all ethnic groups. The overall prevalence of Parkinson’s disease in Europe, for example, is estimated to be 1.6 per 100 in persons over 65 years of age. In 1990, worldwide there were an estimated 4 million people suffering from the disease. It should be emphasised that more than one in ten sufferers are diagnosed before the age of 50.

In the UK, there are 10,000 new cases of Parkinson’s disease every year, and an estimated 120, 000 sufferers in all. The rate is one per cent in those aged above 65; 1 in 20 of patients diagnosed will be under 40 years old.

Click on this link and it will give you lots of sites about Parkinson’s and cases.

http://www.google.ca/search?hl=en&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=Parkinson%27s+%2Bcases&spell=1

Have you tried going to Ask.com or try typing your question in your web browser.

Good luck

Try using a search engine.