Pfizer Covid vaccine temperature: Why does it have to be stored at -70 degrees Celsius?

News of the vaccine’s imminent arrival will come as a major boost to the UK public, after a stop-start 2020.
After the MHRA approved the Pfizer/BioNTech vaccine, the President of the British Society for Immunology described the day as “a momentous day us all.”
“Covid-19 has impacted all our lives in so many ways and hope of an exit strategy has relied on a safe and effective vaccine.
“Today that hope has been realised with the announcement that the UK Government has accepted the MHRA’s recommendation to approve the Pfizer-BioNTech COVID-19 vaccine for use.”


