Tan said his 70-year-old aunt was scheduled to get her second dose at about 3pm, but they decided to come early to beat the traffic.
He said it involved frontliners of the retail sector such as cashiers and sales personnel in supermarkets, customer service personnel, security guards, supermarket, management staff as well as distribution and retailing workers.
State Unity, Community Relations, Manpower and Consumer Affairs Committee chairman, Datuk Ismail Othman said the 10-day programme aimed to dispense Sinovac vaccine to 800 recipients a day.