Four more people have died from eating romaine lettuce tainted with E. coli, the Centers for Disease Control and Prevention (CDC) said Friday.
That brings the total death count from the recent E. coli outbreak to five.
In the past two weeks, an additional 25 people have also become ill from eating contaminated lettuce, the CDC announced. In total, 197 people across 35 states have become sick since March 13.
The Food and Drug Administration (FDA), which is investigating the outbreak with the CDC, has said it believes it can be traced to romaine lettuce sourced from the Yuma growing region in Arizona.