It says it will use its Fenix priority overnight service to ship the vaccines for drug distributor McKesson.

McKesson and Moderna say they're ready to begin shipping to more than 3800 sites this weekend, vastly widening the rollout begun last week with Pfizer.

The moves come on the heels of the Food and Drug Administration's approval Friday of Madonna's vaccine for emergency use.

U S Army General Gustav Purna.

Distribution of Madonna vaccine has already begun.

Madonna has moved vaccine from their fill finished manufacturing sites to McKesson, who will serve as the central distributor at McKesson distribution centers boxes air being packed and loaded Today, trucks will begin rolling out tomorrow from FedEx and UPS, delivering vaccines and kids to the American people across the United States.

I want to make sure that we are 100% committed to fair and equitable distribution toe everybody in the United States of America and I give you my personal word.

That is what I'm driving, too.

The package delivery companies are giving priority to vaccines on planes and trucks that are moving holiday gifts and other cargo.

Their drivers will deliver directly to vaccination sites, unlike fighters, which was sent to a large hubs for redistribution.

That's because the US government's operation warp speed is calling the shots on Madonna's distribution.

Whereas Pfizer organized its own distribution system, Madonna's vaccines are available in smaller quantities and can be stored for longer periods and standard temperature refrigerators than Pfizer's vaccines.

So some state officials say they expect Moderna to be the primary vaccine for people who live in rural areas.