CDC provided no additional details regarding the death, and the California Department of Public Health declined to comment due to patient privacy laws.
Three more states - Kentucky, Massachusetts and Utah- have reported cases, the CDC said in an email.
This undated photo shows romaine lettuce in Houston.
The North Dakota Department of Health (NDDoH) reports North Dakota's first case of E. coli infection associated with romaine lettuce originating from the Yuma, Arizona growing region. At least 52 people have been hospitalized, including 14 with kidney failure.
At last check the C-D-C has confirmed 121 cases from 25 states.
Terre Haute police officer killed in the line of duty
Indiana State Police are investigating the shooting, while Terre Haute Police are handling the original homicide investigation. That acquaintance was the suspected gunman in the earlier homicide and the suspected killer of the police officer.
California now leads the nation with 24 cases, followed by Pennsylvania with 20 and Idaho with 11. Health officials have tied the E. coli outbreak to romaine lettuce grown in Yuma, Arizona, which provides most of the romaine sold in the United States during the winter.
"Any romaine from the Yuma growing region should still be still discarded". The first illnesses occurred in March, and the most recent began on April 21, the CDC said.
KUSI was joined by Doctor Mona Hacker with more on the E. Coli illness and how to keep you and your family healthy.
The most common symptoms of E. coli include diarrhea, bloody diarrhea, abdominal pain, nausea and vomiting.
Associated Press writer Christopher Weber contributed from Los Angeles.