Vancouver, BC – Severe influenza doubles the odds that a person will develop Parkinson’s disease later in life, according to University of British Columbia researchers.
The findings were published online in the journal Movement Disorders in July by researchers at UBC’s School of Population and Public Health and the Pacific Parkinson’s Research Centre. The research results are based on interviews with 403 Parkinson’s patients and 405 healthy people in British Columbia, Canada.
Lead author Anne Harris also examined whether occupational exposure to vibrations – such as operating construction equipment – had any effect on the risk of Parkinson’s. In another study, published online this month by the American Journal of Epidemiology, she and her collaborators reported that occupational exposure actually decreased the risk of developing the disease by 33 percent, compared to people whose jobs involved no exposure.
The research also found that the opposite is true for people who contracted a typical case of red measles as children. They are 35 per cent less likely to develop Parkinson’s. Meanwhile, Harris found that those exposed to high-intensity vibrations – for example, by driving snowmobiles, military tanks or high-speed boats – had a consistently higher risk of developing Parkinson’s than people whose jobs involved lower-intensity vibrations (for example, operating road vehicles). The elevated risk fell short of the statistical significance typically used to establish a correlation, but was strong and consistent enough to suggest an avenue for further study, Harris says.