CNN  — 

A vaccine kit sent to the wrong state. A hospital system in California expecting to get powdered vaccines instead of frozen vials. And tens of thousands of people expect to get vaccinated in the coming weeks, when in reality they are going to have to wait for months.

The rollout of the first coronavirus vaccine is already messy, and it has only been authorized since late Friday night.

The US Food and Drug Administration granted emergency use authorization to Pfizer and BioNTech’s vaccine Friday, and it’s widely expected to grant EUA to Moderna’s similar vaccine next week. Vaccinations began Monday and are under way in all 50 states and in US territories.