The Alameda County Public Health Department, Los Angeles Department of Public Health, and California Department of Public Health (CDPH) investigated an outbreak of shigellosis associated with a Kaiser Permanente union delegate conference held at the Westin Bonaventure Hotel in downtown Los Angeles from August 21 to August 24, 2023. The event included 269 attendees from
Salmonella Outbreak linked to Chicago Carniceria
An outbreak of Salmonella was investigated by the Illinois Department of Public Health (IDPH) and the Chicago Department of Public Health (CDPH) in the summer of 2023. This outbreak was assigned the outbreak code IL2023-1678. An increase in the number of Salmonella cases was identified in September 2023, and the only location found to be…
Colorado Cyclospora Outbreak linked to Restaurant
The Colorado Department of Public Health and Environment investigated an outbreak of Cyclospora on the Western Slope. As of June 15, there have been 62 cases reported in Colorado since May 1, 2023. These cases have not resulted in any hospitalizations or deaths. Historically, Colorado has averaged 63 cases per year between 2017 and 2022.
Hepatitis A Outbreak linked to Strawberries – Again
An outbreak of hepatitis A was investigated by the Centers for Disease Control and Prevention (CDC), state public health partners, and the U.S. Food and Drug Administration (FDA). As of July 18, 2023, a total of 10 outbreak-associated cases of hepatitis A have been reported from four states (CA (2), HI (1), OR (1), WA…
2022 E. coli Outbreak Linked to Wendy’s
An outbreak of E. coli O157:H7 was investigated by the Centers for Disease Control and Prevention (CDC), the US Food and Drug Administration (FDA), and several states from July to August 2022. This outbreak was assigned the CDC code 2208OHEXH-1. A case was defined as a E. coli O157:H7 infection with an isolate closely related…
Rizo-Lopez Cheese linked to 26 Listeria illnesses with 2 Deaths
As of February 6, 2024, a total of 26 people infected with the outbreak strain of Listeria have been reported from 11 states: Arizona 4, California 8, Colorado 4, Florida 1, Georgia 1, Nevada 1, North Carolina 1, Oregon 1, Tennessee 2, Texas 2, Washington 1. Two deaths have been reported, one from California and…
Costco and Sam’s Club Busseto Charcuterie linked to 104 Salmonella cases in 33 States
A total of 104 people infected with the outbreak strain of Salmonella were reported from 33 states. Illnesses started on dates ranging from November 20, 2023, to February 10, 2024. Of 92 people with information available, 27 were hospitalized. No deaths were reported.

The true number of sick people in this outbreak was likely much…
597 with Salmonella linked to Cantaloupe – Again

In the United States, the Salmonella Sundsvall outbreak linked to cantaloupe from Mexico has been declared over. The outbreaks sickened 407 people in 44 states. Six deaths were reported. The Centers for Disease Control and Prevention first reported the outbreak on November 17.
Of the 362 patients with information available, 158 were hospitalized.
Illnesses started…
11 with E. coli in New Jersey, Texas, Colorado, Utah and California linked to Raw Milk Cheese
CDC, public health and regulatory officials in several states, and the U.S. Food and Drug Administration (FDA), are collecting different types of data to investigate a multistate outbreak of E. coli O157:H7 infections. Epidemiologic data show that Raw Farm brand raw cheddar cheese is making people in this outbreak sick.
Since the last update, one…
Multiple Salmonella Outbreaks linked to Boston Restaurant
In the summer of 2023, an outbreak of Salmonella Enteritidis infections occurred in the Boston area. Public health officials from the Boston Public Health Commission and the Massachusetts Department of Public Health conducted investigations into what would become three rounds of illnesses associated with food prepared at Los Amigos Taqueria located at 366 Washington Street…