[bodyfour]

Remember that even if you have a thousand factories, one will be first. Meaning that there will be a time when there appears to be just one.

That's why it feels like that right now. There are many factories around the world gearing up to mass-produce various vaccines. Some will inevitably take a few more months than others to start shipments. Others were being prepared to produce vaccine candidates that ended up failing and are now being re-engineered to produce the vaccines that turned out to work. And the factories that are already producing are constantly working to expand their throughput as well.

Right now the world is being supplied entirely by the first factories. Over the next few months that will change and the total rate of production will be much higher than it is right now.