CNN: E. coli outbreak traced to California farm; some romaine lettuce safe to eat. Fri December 14, 2018

Properly labeled romaine grown outside those three counties and harvested after November 23, as well as romaine grown in greenhouses or hydroponically, should all be safe from contamination, the CDC said. The earlier warning against eating romaine from California's San Luis Obispo, Santa Cruz and Ventura counties has been lifted.

https://www.cnn.com/2018/12/13/health/romaine-lettuce-e-coli-outbreak-source-bn/index.html

E. coli outbreak traced to California farm; some romaine lettuce safe to eat

By Sandee LaMotte, CNN

Updated 2:22 PM ET, Fri December 14, 2018