Controversy over the number of doses in the Pfizer vials
https://www.rte.ie/news/coronavirus/...-pfizer-doses/
How many doses?
Until recently, each vial of the BioNTech-Pfizer vaccine was considered to officially contain five doses.
After being thawed, the contents of each vial are diluted with 1.8ml of saline solution, creating a total of 2.25ml of injectable solution. With each dose 0.3ml, in theory there are just over seven doses.
But theory and practice are different. Medical personnel are unable to measure so precisely the doses to get seven doses they can inject into people.
But the found they could - with the right equipment - reliably get six doses out of the vials.
Both EU and US regulators now consider that the vials contain six doses and have authorised the use of the sixth dose.
However the European Medicines Agency noted that this sixth dose depends on the availability of specific syringes.
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Originally Posted by Beso
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