It's the season for state and county fairs, and health officials are reminding fairgoers to be careful around pigs because of a new flu spreading from the animals to people.
Officials say 29 human cases of the new strain of swine flu have been confirmed in the U.S. in the last year, most of them children.
Ten of the 12 cases confirmed this week were linked to the Butler County Fair in southwest Ohio, which ended last weekend.
Pigs get the flu, too, and can spread it to people. The Centers for Disease Control and Prevention has been tracking sporadic cases since last year, when the new strain was first seen in people. A concern: the new strain has a gene from the 2009 pandemic strain that might let it spread more easily than pig viruses normally do.