It was on Monday, October 11, that 102 people received vaccines that passed Pfizer's recommended eleven-day expiration date.
According to Pfizer, there were no immediate dangers with the vaccine, but it could have a lower effect than normal.
The region is now giving the message that the vaccine has not been harmed and that the persons concerned do not need an extra dose.
Everyone will receive a letter home with information.
Hear Magnus Johansson tell why an extra dose will not be needed in the clip above.