- Revidge Fold Church in Blackburn
- Royal Blackburn Hospital
They will use an extra allocation of 1,000 new Pfizer jabs a day for East Lancashire.
The sites will be open from 8am until 8pm until Thursday with more extra clinics due after then.
The jabs are also available to anyone aged 38 and over; health and social care staff; and any carers paid or unpaid (who will not be asked for proof).
Vaccinations must be booked in advance via the Blackburn with Darwen and East Lancashire Clinical Commission Groups and Healthier Lancashire and South Cumbria NHS websites.
They are not available on a walk-in basis or through the NHS national booking system.