It's under this heading:
How is the Pfizer-BioNTech COVID-19 vaccine being distributed?
Pfizer has activated its extensive U.S. and European manufacturing network, including thousands of highly skilled U.S. workers in multiple states and localities, to prepare to produce the COVID-19 vaccine. We currently have the capacity to produce 4 billion doses annually, pending demand.
Influenza they reckon could be scaled up to between 6-8 billion annually, if needed.
Well you are free to suspect that.
But I'm not going to put the health of my family on hold pending the (impossible) total eradication of global health inequity.