RICHMOND, Va (WTVR) - Over 4,000 people in Virginia have the genetic blood disease Sickle Cell Anemia. George Carter and Sylvia Alexander-Wall shared more details about the annual "Unity Ride". 'The Unity Ride for Sickle Cell' is Saturday, May 3rd . Cyclists will depart from the parking lot of the Petersburg Health Department, 301 Halifax Street at 9am. For more information visit https://www.facebook.com/events/1418762338385026/.