Flu linked to Parkinson’s disease decades later
US study suggests infection with influenza doubles the risk of the neurological disease after more than 15 years

A bout of influenza, but not other infections, may increase a person’s risk of Parkinson’s disease decades later, a study suggests.
The US research shows that influenza is associated with an almost two-fold raised risk of Parkinson’s disease more than 15 years after the infection.