It is interesting that Pfizer’s 20% increase in total dose delivery is the same as the FDA agreed upon label change on doses per vial based on the ability to extract one extra dose per vial using certain syringes.
There was a NYT story about the extra doses a few days ago -
"In December, pharmacists made the happy discovery that they could squeeze an extra vaccine dose out of Pfizer vials that were supposed to contain only five.
Now, it appears, the bill is due. Pfizer plans to count the surprise sixth dose toward its previous commitment of 200 million doses of Covid vaccine by the end of July and therefore will be providing fewer vials than once expected for the United States."
"For weeks, Pfizer executives pushed officials at the Food and Drug Administration to change the wording of the vaccine’s so-called emergency use authorization so that it formally acknowledged that the vials contained six doses, not five.
The distinction was critical: Pfizer’s contract with the federal government requires that it be paid by the dose. And there were serious public health implications. If the label’s formal language told people administering the vaccine that the vial contained a sixth dose, that could accelerate the pace of vaccinations at a crucial time.
At one point, Pfizer executives lashed out at the top federal vaccine regulator over the government’s hesitation to approve the request, according to people familiar with the discussions who were not authorized to discuss them.
On Jan. 6, Pfizer got what it wanted. The F.D.A. changed the language in its fact sheet for doctors to confirm that the vials contain a sixth dose. The change mirrored similar labeling updates by the World Health Organization and the F.D.A.’s counterpart in the European Union.
Company officials, including the chief executive, Dr. Albert Bourla, have said that the sixth dose allows Pfizer to stretch its supply of scarce vaccine even further — it was one factor, for example, in the company’s new estimates that it will be able to manufacture two billion doses for the world this year, instead of the 1.3 billion it had originally planned."
After the surprise discovery of an extra dose in every vial, Pfizer executives successfully lobbied the F.D.A. to change the vaccine’s formal authorization language. The company charges by the dose.
www.nytimes.com