Pfizer and BioNTech say they will ship fewer COVID-19 vaccine vials to Canada if Health Canada agrees to change the vaccine label from five to six doses. In December 2020, hospital pharmacists in the United States discovered that the vaccine glass vials that supposedly can only hold five doses, allows for a sixth if they use smaller syringes or special ones that trap less vaccine around the needle after an injection. The discovery led Pfizer into counting the sixth dose toward its dose commitment, noting that its contracts are for doses, not vials. Should countries agree to change the label information to six doses instead of five, then Pfizer and BioNTech will be able to provide fewer vials and still fulfill their contractual obligation. So far, they have succeeded in having the United States and Europe change the label information in early January. Pfizer asked Canada to consider following suit …