SNCA and Parkinson disease: The innate immune response and the acquired immune response are activated in PD patients, and α-synuclein can aggregate and increase after immune stimulation, which may destroy the immune system,[5] but this conclusion has not been confirmed so far, and future research needs to Better understanding of the interaction between alpha-synuclein and the immune system, but theoretically PD has the potential to be susceptible to SARS-CoV-2.