In Brief

CDC Says to Avoid All Romaine Lettuce Amid E. Coli Outbreak

Two stalks of romaine lettuce.
(Image credit: Louella938/Shutterstock)

An E. coli warning tied to romaine lettuce is being expanded to include all types of romaine from a region in southwestern Arizona, the Centers for Disease Control and Prevention (CDC) announced today (April 20).

The announcement means that consumers should avoid eating not just chopped romaine from this region — as the CDC previously advised — but also whole heads and hearts of romaine, the CDC said.

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Rachael Rettner
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Rachael is a Live Science contributor, and was a former channel editor and senior writer for Live Science between 2010 and 2022. She has a master's degree in journalism from New York University's Science, Health and Environmental Reporting Program. She also holds a B.S. in molecular biology and an M.S. in biology from the University of California, San Diego. Her work has appeared in Scienceline, The Washington Post and Scientific American.