Pfizer vaccines can now be stored at refrigerator temperatures for up to one month, Health Canada announced Wednesday (May 19).
The move came when Health Canada authorized a request from manufacturer Pfizer-BioNTech to allow the vaccine to be stored from 2-8°C for up to one month at the point of use, i.e., at vaccine clinics. Long-term storage of the Pfizer mRNA vaccine will still require ultra-cold storage of between -80°C to -60°C, but this move is the first time that the vaccine can be stored at refrigerator temperatures for more than five days.