41 Probable Swine Flu Cases Counted in Illinois

Illinois health officials say the number of probable H1N1 or swine flu cases in the state has more than doubled to 41.

The numbers released Thursday night are all located in northern Illinois, including 16 in Chicago and 11 in Cook County.

The others are seven in Kane County, three in Will County, two in DuPage County, and one each in McHenry County and Lake County.

The cases are called "probable'' because they haven't yet been confirmed by federal testing.

The outbreak of the new virus strain is suspected of causing 168 deaths in Mexico. One death has been confirmed in the United States. In most confirmed U.S. cases, the patients are recovering.