Black and African Americans Connections to Parkinson's Disease (BLAAC PD)

Inclusion Criteria for Control Participants:

• Ability to provide informed consent

• Age 50 years or older

• Self-identify as Black or African American

Exclusion Criteria for Control Participants:

• Diagnosis of Parkinson's Disease and/or neurological condition

• Familial history of PD and/or neurodegenerative or psychiatric conditions

• Unknown family history of PD and/or neurodegenerative or psychiatric conditions

• Any conditions that, in the investigator's opinion, preclude the individual's ability to carry out study activities

• If submitting a saliva sample, nothing by mouth (food, drink, gum, tobacco, or smoking) for 30 minutes prior to sample collection

Inclusion Criteria for Participants with a Diagnosis of PD:

• Ability to provide informed consent

• Age 18 years or older

• Self-identify as Black or African American

• Meet the Movement Disorder Society's clinical diagnostic criteria for Parkinson's disease

Exclusion Criteria for Participants with a Diagnosis of PD:

• If submitting a saliva sample, nothing by mouth (food, drink, gum, tobacco, or smoking) for 30 minutes prior to sample collection