ST. LOUIS—Two law firms have filed three suits against a California farm that the firms say is the source of contaminated food linked to the E-coli outbreak in Missouri and six other states.

Health officials say there have been 115 cases of E. coli in St. Louis County, including 13 hospitalizations and three have been diagnosed with a severe complication caused by the bacterial infection.

The outbreak has been linked to multiple events catered by or hosted at Andre’s Banquets and Catering, including those by Rockwood Summit High School and Oakville High School. 

“The salads that Andre’s served and that infected so many people with E. coli were made with lettuce from Taylor Farms.  This same Taylor Farms lettuce gave people E. coli in 6 other states,” says E. coli lawyer Jory Lange.

The lettuce from the business tested negative for E-coli last month. 

Andre’s released a statement saying in part, "We reiterate-- as we have from the onset-- that it's been unfair to name our company without this investigation being complete."

The St. Louis County Health Department says it is still working to determine the source and its investigation continues to suggest that the exposure came from leafy greens. 

Earlier this week, the county health department said genetic testing has confirmed 25 local cases linked to catering company. Officials say additional confirmed cases with a similar genetic profile have been reported in Illinois, Kansas, North Dakota, South Dakota, Ohio and Indiana.

Taylor Farms, the defendant in the suits, did not respond to a request for comment late Wednesday afternoon. 

The attorneys say they are hoping to get compensation for as many victims of this outbreak. They also want to get to the bottom of what happened to prevent other ones in the future.