At present, the supply of coronavirus vaccines in many states of the United States is in short supply, and state governments have called on the federal government to provide more vaccines.
According to CNN on the 23rd, Pfizer Pharmaceutical Co., Ltd.
and the Food and Drug Administration of the United States said that pharmacists and medical staff are allowed to increase the number of doses extracted from each bottle of vaccine in certain circumstances.
According to the original description, Pfizer produced five doses per bottle, but some pharmacists reported that when using a smaller syringe, six doses could be extracted from a bottle.
Pfizer said that this is equivalent to an increase in vaccine production by 20%.