Listeria Outbreak: CDC Updates on Deli Meat Illnesses | CDC Newsroom

Reports of new illnesses linked to a multistate Listeria outbreak associated with deli meats have slowed, according to an update from the Centers for Disease Control and Prevention (CDC). While the investigation continues, the rate of new cases appears to be decreasing, though health officials emphasize ongoing vigilance is crucial. This outbreak, first identified in July 2024, has affected individuals across 19 states, with a total of 59 confirmed cases as of September 25, 2024.

Understanding the Current Situation

The CDC’s latest data indicates that all 59 individuals infected with the outbreak strain of Listeria monocytogenes required hospitalization, and tragically, 10 deaths have been reported. The illnesses began appearing as early as the same day and as late as 70 days after potential exposure, highlighting the extended timeframe over which symptoms can develop. This makes pinpointing the source and tracking the outbreak’s progression particularly challenging. The CDC is now updating this notice less frequently, but will continue to monitor for new cases and report any significant developments.

Listeria monocytogenes is a bacterium that can cause a serious infection called listeriosis. Unlike many foodborne illnesses that cause relatively mild gastrointestinal distress, Listeria can spread beyond the gut and cause severe complications, especially in vulnerable populations. The CDC provides detailed information on preventing listeriosis, emphasizing the importance of safe food handling practices.

Who is Most at Risk?

Certain groups are at higher risk of severe illness from Listeria infection. These include pregnant individuals, adults aged 65 and older, and people with weakened immune systems due to underlying medical conditions or treatments. For pregnant people, Listeria infection can lead to miscarriage, stillbirth, premature delivery, or life-threatening infection in the newborn. Even for those who aren’t pregnant, symptoms like headache, stiff neck, confusion, and convulsions can develop.

The Deli Meat Connection and Recall Information

The outbreak has been strongly linked to meats sliced at deli counters. Investigations have revealed that 16 out of 18 interviewed individuals reported consuming deli-sliced meats before becoming ill. Currently, the outbreak appears isolated to meats sliced to order; prepackaged deli meats have not shown a connection. Consumers are advised to avoid eating recalled deli meats and to check their refrigerators for any products subject to recall. The USDA’s Food Safety and Inspection Service (FSIS) has issued several recall notices, some with sell-by dates extending into October 2024. You can identify the latest recall information on the FSIS website.

What Does This Indicate in Plain Language?

This outbreak underscores the potential risks associated with deli counters. While convenient, these areas can present unique challenges for maintaining food safety. Listeria can grow even in refrigerated temperatures, and the slicing process can contribute to cross-contamination. The CDC recommends that individuals at higher risk avoid eating deli meats unless they are heated to an internal temperature of 165°F (until steaming hot) immediately before consumption. This heating process effectively kills the bacteria.

The Public Health Response and Ongoing Surveillance

The CDC, in collaboration with state health departments and the USDA-FSIS, is continuing to investigate the outbreak. This includes analyzing samples of deli meats, interviewing affected individuals, and monitoring for new cases. The CDC’s investigation is focused on identifying the source of contamination and implementing measures to prevent further illnesses. Food safety officials are also working with businesses to reinforce best practices for controlling Listeria contamination in deli areas, as outlined by the USDA-FSIS guidelines.

What to Do If You Suspect an Infection

If you believe you may have symptoms of listeriosis – which can include fever, muscle aches, headache, stiff neck, confusion, and loss of balance – and have recently consumed deli meats, We see crucial to contact your healthcare provider immediately. Early diagnosis and treatment are essential for managing the infection and preventing serious complications. You can find more information about the symptoms of Listeria infection on the CDC website.

For businesses handling deli meats, thorough cleaning and sanitizing of equipment and surfaces are paramount. Following USDA-FSIS best practices is essential to minimize the risk of Listeria contamination and protect public health.