It comes as the North East Essex Clinical Commissioning Group is rolling out walk-in vaccinations sites.
No pre-booked appointments are required in order to use the pop-up service and both first and second doses are being offered.
The scheme is part of a fresh drive to encourage more people of all ages and ethnicities to get the coronavirus vaccine.
It is also designed to make the process more accessible and flexible for those who lead busier and more hectic lives.
Lisa Nobes, director of nursing and clinical quality for the North East Essex CCG, said: “I was vaccinating at a walk-in and we had a number of people who just happened to be out shopping who had not got around to booking an appointment.