Public health officials are now facing a double flu crisis: a shortage of flu vaccine, and panic about the limited doses. Elizabeth Kaledin reports keeping calm is half the remedy.

The predicted flu shot shortage is made more difficult because the complex vaccine takes a long time to make. Elizabeth Kaledin reports clinics are already crowded with people seeking the vaccine.

Dr. Julie Gerberding, the director of the Centers for Disease Control, updated The Early Show on the nationwide demand for flu vaccine.

Despite a shortage of flu vaccine for the general public, there is a surplus for those who need the shots most. The CDC's Dr. Julie Gerberding spoke to The Early Show about the situation.

Dr. Julie Gerberding, the director of the Centers for Disease Control, spoke to The Early Show about the likelihood of a flu vaccine shortage.