--- title: Jensen Farms Cantaloupe Listeria Outbreak - Marler Clark Litigation in Montana date: 2011-09-08T10:31:54-07:00 author: admin canonical_url: "https://marlerclark.com/jensen-farms-cantaloupe-listeria-outbreak-marler-clark-litigation-in-montan" section: Litigation Landing Pages --- [Foodborne Illnesses](/foodborne-illnesses) / [Listeria](https://marlerclark.com/foodborne-illnesses/listeria) / # Jensen Farms Cantaloupe Listeria Outbreak - Marler Clark Litigation in Montana ## U.S. District Court for the District of Montana *[The Estate of Jerome Onsager v. Frontera Produce, Primus Labs and Walmart Stores](http://www.marlerclark.com/pdfs/ONSAGER-Complaint.pdf "The Estate of Jerome Onsager v. Frontera Produce, Primus Labs and Walmart Stores")* In a lawsuit to be filed in August of 2013, Bette Onsager alleges that her husband, Jerome Onsager, consumed a portion of at least one Jensen Farms cantaloupe purchased from a Walmart store in Bozeman, Montana in August of 2013. Mr. Onsager, who was 75 years old, began experiencing symptoms of Listeria infection in the first week of September, 2011. On September 6, he fell, became disoriented and had trouble functioning. His wife summoned help from neighbors and took him to the emergency department, where he was admitted for treatment of a Listeria infection. Despite months of medical treatment at various medical centers, Mr. Onsager died on January 21, 2012. The cost of treatment related to his listeriosis exceeded $675,000. It was not until June of 2012 that Mr. Onsager’s family was notified that his illness had been linked to the Jensen Farms outbreak. Analysis of Listeria bacteria from a cut cantaloupe collected form the home of another outbreak victim revealed that not four, but five strains of Listeria monocytogenes bacteria had caused the Jensen Farms outbreak. Mr. Onsager was infected the fifth strain of Listeria monocytogenes associated with the Jensen Farms cantaloupe outbreak. ### Listeria outbreaks and recalls August 23, 2023 ###### [Listeria outbreak: Three die after drinking contaminated milkshakes](https://marlerclark.com/news_events/listeria-outbreak-three-die-after-drinking-contaminated-milkshakes) Three people have died, and three others are in hospital after drinking milkshakes contaminated with listeria bacteria in the US state of Washington, health officials … July 12, 2023 ###### [2011 Listeria outbreaks linked to cantaloupes: A history](https://marlerclark.com/news_events/2011-listeria-outbreak-linked-to-cantaloupes-a-history) A total of 148 persons infected with any of the five outbreak-associated strains of Listeria monocytogenes were reported to the CDC from 28 states. The … May 20, 2023 ###### [A quick look at the 2018 Hepatitis A outbreak](https://marlerclark.com/news_events/a-quick-look-at-the-2018-hepatitis-a-outbreak) Litigation proceeded in a Virginia state court against Tropical Smoothie and the strawberry supply chain. 134 people with Hepatitis A were reported from nine states … [1. View all ](https://marlerclark.com/news_events/outbreaks) ## All Listeria Resources [###### Listeria Food Poisoning ](https://marlerclark.com/foodborne-illnesses/listeria/about-listeria) [###### The Incidence of Listeria Infections ](https://marlerclark.com/foodborne-illnesses/listeria/the-incidence-of-listeria-infections) [###### The Prevalence of Listeria in Food and the Environment ](https://marlerclark.com/foodborne-illnesses/listeria/listeria-prevalence) [###### Transmission of and Infection with Listeria ](https://marlerclark.com/foodborne-illnesses/listeria/transmission-of-and-infection-with-listeria) [###### Who is Most at Risk of Becoming Ill with Listeria? ](https://marlerclark.com/foodborne-illnesses/listeria/who-is-most-at-risk-for-becoming-ill-with-listeria) [###### What Are the Symptoms of Listeria Infection? ](https://marlerclark.com/foodborne-illnesses/listeria/listeria-symptoms-risks) [###### Complications of Listeria Infection ](https://marlerclark.com/foodborne-illnesses/listeria/complications-of-listeria-infection) [###### How is Listeria Infection Diagnosed? ](https://marlerclark.com/foodborne-illnesses/listeria/listeria-diagnosis) [###### Treatment for Listeria Infection ](https://marlerclark.com/foodborne-illnesses/listeria/listeria-treatment) [###### Antimicrobial Resistance in Bacteria ](https://marlerclark.com/foodborne-illnesses/listeria/antimicrobial-resistance-in-bacteria) [###### The Economic Impact of Listeria Infections ](https://marlerclark.com/foodborne-illnesses/listeria/the-economic-impact-of-listeria-infections) [###### Preventing Listeria Infection ](https://marlerclark.com/foodborne-illnesses/listeria/listeria-prevention) [###### Listeria References ](https://marlerclark.com/foodborne-illnesses/listeria/listeria-references) ### Other foodborne illnesses [E. coli](https://marlerclark.com/foodborne-illnesses/e-coli) [Salmonella](https://marlerclark.com/foodborne-illnesses/salmonella) [Listeria](https://marlerclark.com/foodborne-illnesses/listeria) [Hepatitis A](https://marlerclark.com/foodborne-illnesses/hepatitis-a) [Reactive Arthritis](https://marlerclark.com/foodborne-illnesses/reactive-arthritis) [Guillain-Barre Syndrome](https://marlerclark.com/foodborne-illnesses/guillain-barre-syndrome) [Irritable Bowel Syndrome](https://marlerclark.com/foodborne-illnesses/irritable-bowel-syndrome) [Norovirus](https://marlerclark.com/foodborne-illnesses/norovirus) [Botulism](https://marlerclark.com/foodborne-illnesses/botulism) [Campylobacter](https://marlerclark.com/foodborne-illnesses/campylobacter) [Shigella](https://marlerclark.com/foodborne-illnesses/shigella) [Cyclospora](https://marlerclark.com/foodborne-illnesses/cyclospora) [Hemolytic Uremic Syndrome](https://marlerclark.com/foodborne-illnesses/hemolytic-uremic-syndrome)