Prof. Peter Kelly, Director of Public Health North East & Yorkshire
Venues across both areas are being converted to vaccination centres this weekend, where people will be able to get jabbed without an appointment.
This call comes ahead of the lifting of restrictions on Monday, July 19, dubbed "Freedom Day".
The Newcastle/Gateshead Quayside, Trinity Leeds, and Doncaster's Frenchgate centre and some sports stadiums will be among the locations across both regions offering the chance to 'Grab a Jab'. Any adult will be able to turn up and get their first vaccine if they have not already taken up the offer.
Dr Yvette Oade, NHS Clinical Lead for the Vaccination Programme in the North East and Yorkshire, said: "We're encouraging anyone aged 18 and over who's not yet had their Covid jab to come forward to get protected against this potentially serious illness.
You can find details of your nearest vaccination session by checking the website of your local authority (council) or local Clinical Commissioning Group (CCG) or via www.nhs.uk.
The latest figures show that in North East and Yorkshire more than 10.5 million doses have been given - 5.9m first doses and 4.6m second doses.
Anyone who attends a walk-in clinic for their first dose will have their vaccination record updated online and will then be able to book in their second dose appointment using the national booking system. Those who cannot go online can call the service on 119 instead to book their jab.