Federal health officials issued a public health alert Saturday for meat products containing jalapeño peppers that may be contaminated with salmonella, as an ongoing outbreak has affected hundreds of Americans across more than half the nation.

The U.S. Department of Agriculture’s Food Safety and Inspection Service announced that the alert applies to red meat and poultry products containing jalapeños potentially linked to a salmonella outbreak that has sickened at least 345 people in 27 states. Of those affected, 36 have required hospitalization.

The USDA became aware of the contamination after discovering that multiple federally regulated food establishments had received a recalled ingredient. The agency released a list identifying 18 recalled products from brands including Taylor Farms, Ready Meals, Meal Simple, Higher Harvest, and Deli Kitchen. Officials expect the list of affected products to grow as the investigation continues.

The outbreak’s origins trace back to mid-June, when the first illnesses were reported and subsequently linked to jalapeño peppers grown in Sinaloa, Mexico. Coast Citrus Distributors had supplied these peppers to wholesalers, restaurants, and food service companies throughout the country.

The USDA emphasized that no confirmed illnesses have yet been directly attributed to FSIS-regulated products containing the Sinaloa-sourced jalapeños, though the precautionary alert remains in effect.

Minnesota has been particularly affected by the outbreak, with at least 110 confirmed cases within the state. According to data compiled by the Centers for Disease Control and Prevention, of 191 patients interviewed about their illness, 93 percent reported dining at Mexican-style restaurants before becoming sick. This pattern has drawn attention to popular national chains, including Chipotle and Qdoba, both of which have locations among the establishments frequented by those who fell ill.

In response to the outbreak, Chipotle announced earlier this week that it has removed jalapeños from some of its restaurant locations as a precautionary measure. Qdoba has similarly taken steps to address the contamination concern.

The salmonella outbreak represents a significant public health challenge, affecting communities across more than half of the United States. Federal officials continue to investigate the full scope of the contamination and work to identify additional products that may pose a risk to consumers.

The situation underscores the complexities of the modern food supply chain, where ingredients from international sources can quickly reach consumers through multiple distribution channels. It also highlights the importance of the coordination between federal agencies, including the USDA, FDA, and CDC, in responding to foodborne illness outbreaks.

Consumers who have purchased products containing jalapeños are advised to check the USDA’s list of recalled items and to contact their healthcare providers if they develop symptoms of salmonella infection, which typically include diarrhea, fever, and abdominal cramps. The elderly, young children, and those with weakened immune systems face the greatest risk of severe illness from salmonella contamination.

As the investigation progresses, federal officials expect to identify additional downstream products affected by the contaminated jalapeños, and further recalls may be necessary to protect public health.

Related: Hunter Biden Says Former President’s Cancer Has Spread to His Bones