A new study suggests there may be a link between influenza infection and an increased risk for Parkinson’s disease.
Parkinson’s is a chronic and progressive disorder of the nervous system marked by problems with movement, cognitive changes, and a range of other symptoms.
Several earlier studies reported a sharp increase in Parkinson’s cases following the 1918 influenza pandemic.
Some cases of Parkinson’s have been linked to environmental exposures to pesticides and other toxic chemicals.
Genetics may also play a role, but most cases of Parkinson’s have no known cause.