In 2012, 29 people across the United States suffered E. coli infections. The Centers for Disease Control and Prevention (CDC) linked most of these cases to raw clover sprouts at a specific restaurant chain. Which is the most effective way for the CDC to control this outbreak?

Because the CDC linked most infections to raw clover sprouts from a specific restaurant chain, the most direct way to limit further cases is to tell people to avoid that contaminated source. This removes exposure to the suspected cause of the outbreak. Flyers about washing vegetables may not make contaminated sprouts safe, and asking everyone to stop eating raw leafy greens is broader than necessary.

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