HOUSTON Texas Children s Hospital officials announced a change in their visitor policy effective immediately.

Hospital officials say visitors going into clinical areas will be screened for flu-like symptoms. They say they took the same precaution last spring.

In addition to the screening, TCH will not allow visitors ages 12 and under.

Hospital officials say they re making the changes because of swine flu concerns. The changes will remain in effect as long as necessary.

Texas Children s Hospital isn t the only hospital taking these precautions.

In fact, hospitals all across the country are taking similar measures based on the advice of the Centers for Disease Control.

The CDC includes Management of Visitors in its list of flu fighting tools for hospitals.

Eleven U.S. flu-related child deaths were reported the third week of September.

And, right now, 27 states, including Texas, report widespread influenza activity.

And the last place you want it spread is in the presence of pregnant women and in a hospital full of fragile pediatric patients.

CBS Medical Correspondent Dr. Jennifer Ashton said that if a newborn up to the age of 6 months gets influenza, it can be very dangerous.

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