The nation's public health agency has released a free app for the iPad called "Solve the Outbreak." It allows users to run through fictional outbreaks and make decisions: Do you quarantine the village? Talk to people who are sick?

The Centers for Disease Control and Prevention says the app was designed in-house and wouldn't give an estimate for development costs.

The agency says it is using social media to educate the public about diseases and to promote an appreciation for public health work. The app went live this week.

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Online:

CDC app: http://content.govdelivery.com/bulletins/gd/USCDC-6d0654