Although swine flu has not been reported in Illinois, the Illinois Department of Public Health said Saturday night is working with the Centers for Disease Control and Prevention to monitor the outbreak and protect residents.

As of Saturday, the CDC has found 11 human cases of swine influenza A in California, Texas and Kansas.

"We are working with local and federal health officials to limit the impact of this outbreak and safeguard the health of the people of Illinois. Although there are no known cases of swine flu in Illinois, there is an ongoing investigation into the source and until that can be determined we must remain vigilant," said Dr. Damon T. Arnold, Illinois Department of Public Health Director, in a statement released Saturday night.

Swine flu is a respiratory disease of pigs caused by type A influenza virus. Human cases typically involve people who have had direct contact with pigs, but the CDC has established human-to-human transmission among these recent cases.

The United States has declared a public health emergency to deal with swine flu, reporting 20 domestic cases in five states. In Mexico, the disease has killed up to 86 people and likely sickened up to 1,400.

Although currently there are no travel restrictions recommended, the World Health Organization is holding routine meetings and this may change. If you are planning travel to Mexico follow these recommendations to reduce your risk of infection and help you stay healthy. http://wwwn.cdc.gov/travel/contentSwineFluMexico.aspx

The CDC has created a webpage with information and updates. Visit www.cdc.gov/flu/swine or call 1-800-CDC-INFO.