Crowds Overwhelm Flu Shot Providers

At the Travis County Fairgrounds in Austin, health officials turned a huge livestock barn into a drive-through clinic for free seasonal flu shots.

They expected a strong turnout, but county medical director Dr. Philip Huang says it was overwhelming.

"This is a record for us," Huang said.

The line of cars stretched more than a mile.

"I am very concerned," said Savana Wilmot. "I'm very over-protective of my kid."

Officials began the day with 1,500 doses of vaccine, but by mid-morning were already running out. They scrambled to find 1,200 more doses and extra medics, reports CBS News correspondent Don Teague.

Health officials have done drive-through shot clinics here before, but say they've never seen anything like this. The reason is clear with one trip to the nearest emergency room.

At Dell Children's Medical Center, emergency room doctors say most of the 200 people they see each day suffering from flu symptoms do have H1N1.

There are so many sick children, they've set up a flu triage outside the ER.

"These tents allow us to take some of the least ill patients, screen them to make sure it's safe to take them out of the hospital environment and get them through the system, taking care of them home much more rapidly," said Pat Crocker, chief of emergency medicine.

"It was crazy when we got here," said Misty Wright, a mother. "It was actually scary he was concerned, he was like 'Do I need to put on a mask?'"

When the H1N1 vaccine finally arrives next month, health officials say they'll do this all over again, and expect even longer lines.