A senior adviser to President Barack Obama says the government will catch up to the demand for swine flu vaccine within a week.

Obama adviser David Axelrod says the manufacturers of the vaccine were wrong when they advised the administration earlier this year that they would have 40 million doses ready near the end of October. Instead, only 28 million doses of vaccine were available.

Axelrod says 10 million more doses are expected to be available this week. He predicted that the U.S. will have all the vaccine it needs "in very short order."

The swine flu vaccination program began Oct. 5. The delivery of the vaccine has frustrated people worried about the new H1N1 virus.

Axelrod appeared Sunday on CBS' "Face the Nation."