DENVER -- At the Americanos bus station in Denver, at least 7 buses were departing from El Paso Sunday.

Many of those passengers said they then take another bus to cross the border.

"I'm headed to Chihuahua," said Saul Santiesteban.

Before he and his wife set out, though, she wanted to get a flu shot.

"Just as a precaution about that flu stuff that's going on right now," he said. "I always take precautions so I don't get sick down there."

While the swine flu wasn’t the focus during Denver’s “Dia Del Nino” celebrations, it was a growing concern for those with family in Mexico.

"I'm pretty sure as the week progresses people are going to start worrying, calling and start sending money," said Jose Luis Marquez, who said a lot of people weren’t aware yet of the scope of the problem.