Grey Bruce residents under the age of 30 who are looking to receive their third dose will be getting the Pfizer-Bio-N-Tech vaccine.
The health unit says supply issues have resulted in a limited supply of the Pfizer vaccine.
They say those 30 and older will get their third dose from the Moderna vaccine.
The health unit says the third doses will be administered through the hockey hub mass vaccination clinics over the first two weeks in January.
They say appointments for third doses are open to any Ontario resident 18 and over.
