At least 21 people across Cache and Box Elder counties have come down with Salmonella, and investigators still don't know what's causing it. The Bear River Health Department announced the case count Tuesday, saying it is actively working to trace where the bacteria originated, whether from a specific food product, a water source, or a dining establishment.
The health district, which holds public health jurisdiction across Cache, Box Elder, and Rich counties in northern Utah, has not yet linked the illnesses to a single restaurant, product, or water supply. As reported by KSL, reporter Kennedy Camarena detailed the outbreak Tuesday, noting that symptoms of the illness include diarrhea, fever, stomach or abdominal pain, nausea, and vomiting, and can sometimes include bloody diarrhea. Symptoms typically appear between six hours and six days after infection, according to the outlet's report.
Most people who contract Salmonella recover without medical treatment within several days, but the bacteria can cause more serious illness in young children, older adults, and people with weakened immune systems. Anyone experiencing symptoms is urged to contact their healthcare provider, especially if symptoms are severe or fail to improve, per the same report.
How Utah Tracks and Confirms Cases
The 21 confirmed cases reflect only what's been caught by laboratory testing — and foodborne illness counts are typically undercounts, since many people who get sick recover at home without ever being tested. Under Utah Administrative Rule R386-702-3, healthcare providers and medical laboratories statewide are legally required to report all salmonellosis cases to local health departments and submit clinical isolates to the Utah Public Health Laboratory. That mandatory reporting system is what allows officials to detect clusters like this one in the first place, feeding whole genome sequencing and patient interviews that help investigators spot common links.
Utah's overall Salmonella infection rate has fallen sharply over the past two decades, from 22.2 cases per 100,000 person-years in 2000 to an average of 10.7 cases per 100,000 between 2018 and 2022, according to Utah Department of Health and Human Services surveillance data. That downward trend doesn't make local clusters any less serious for the people affected, but it does mean Utah has historically maintained lower Salmonella rates than the national average.
A Familiar Playbook for Local Investigators
This isn't the first time northern Utah health officials have had to hunt down a Salmonella source. A CDC study examining a Salmonella Livingstone outbreak that struck two neighboring Utah counties between December 2023 and January 2024 showed how combining open-ended patient interviews with grocery purchase histories allowed investigators to rapidly identify a local restaurant as the source, according to a report published in the CDC's Morbidity and Mortality Weekly Report. That earlier outbreak affected 11 restaurant patrons.
The Bear River Health Department's Environmental Health Division maintains ongoing regulatory authority over commercial food operators in Cache and Box Elder counties, requiring plan reviews, pre-opening inspections, and annual food permits that range from $250 to $800 depending on risk tier. Environmental health officers routinely conduct food safety inspections and water testing as part of that oversight, though the dossier does not indicate whether any specific facility has been flagged in this investigation.
National Context and How to Report Illness
The Cache Valley outbreak arrives as federal health officials separately track a much larger, unrelated Salmonella investigation. The FDA and CDC reported in August that a multistate outbreak linked to contaminated jalapeño peppers had sickened 431 people across 32 states, including Utah, resulting in 57 hospitalizations nationwide. Nationally, non-typhoidal Salmonella bacteria cause an estimated 1.35 million illnesses, 26,500 hospitalizations, and 420 deaths every year in the United States, per the CDC, making it a leading cause of foodborne illness fatalities.
Utah residents worried about foodborne illness have also dealt with other recent scares. Hoodline reported on a Super Greens recall in January tied to a nationwide Salmonella outbreak that sickened at least 45 people across 21 states, including Utah, after Superfoods Inc. pulled its Live it Up Super Greens powders from shelves.
Anyone with symptoms is encouraged to stay home when possible and practice good hand hygiene to avoid spreading the illness further. Prevention steps include washing hands with soap and water after using the bathroom, changing diapers, or handling animals, as well as before preparing food or eating. Food safety practices such as cooking foods to safe temperatures, preventing cross-contamination, and promptly refrigerating perishable items are also recommended.
Residents seeking more information or wanting to report a food safety concern can contact the Bear River Health Department directly at 435-792-6525 or visit its website, according to Cache Valley Daily. Utah also operates a statewide public complaint portal called I Got Sick at igotsick.health.utah.gov, managed by the Utah Department of Health and Human Services, which allows residents to submit direct reports of suspected foodborne illness that complement laboratory surveillance.
