Listeriosis, a serious infection usually caused by eating food contaminated with the bacterium Listeria monocytogenes, is an important public health problem in the United States. The disease primarily affects older adults, pregnant women, newborns, and adults with weakened immune systems. However, rarely, persons without these risk factors can also be affected. https://www.cdc.gov/listeria/site.html https://tools.cdc.gov/podcasts/images/cdclogo.jpg https://www.cdc.gov/listeria/index.html 95 61 en-US ncezidweb@cdc.gov Listeriosis Public Health As of November 30, 2020, a total of 11 people infected with the outbreak strain of Listeria monocytogenes have been reported from three states. A list of the states and the number of cases in each can be found on the Map of Reported Cases page. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=415488 https://www.cdc.gov/listeria/outbreaks/delimeat-10-20/index.html Fri, 04 Dec 2020 12:00:00 EDT Diseases & Conditions Food Safety Food Safety Food-Related Diseases Foodborne Disease Listeriosis As of October 22, 2020, a total of 10 people infected with the outbreak strain of Listeria monocytogenes have been reported from three states. A list of the states and the number of cases in each can be found on the Map of Reported Cases page. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=415487 https://www.cdc.gov/listeria/outbreaks/delimeat-10-20/index.html Fri, 23 Oct 2020 15:30:00 EST Diseases & Conditions Food Safety Food Safety Food-Related Diseases Foodborne Disease Listeriosis CDC, public health and regulatory officials in several states, and the U.S. Food and Drug Administration (FDA) investigated a multistate outbreak of Listeria monocytogenes infections linked to enoki mushrooms. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=411283 https://www.cdc.gov/listeria/outbreaks/enoki-mushrooms-03-20/index.html Tue, 09 Jun 2020 15:00:00 EST Diseases & Conditions Food Safety Food Safety Listeriosis As of April 8, 2020, 36 people infected with the outbreak strain of Listeria monocytogenes have been reported from 17 states. A list of the states and the number of cases in each can be found on the Map of Reported Cases page. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=411284 https://www.cdc.gov/listeria/outbreaks/enoki-mushrooms-03-20/index.html Wed, 08 Apr 2020 15:00:00 EST Diseases & Conditions Food Safety Food Safety Listeriosis CDC, public health and regulatory officials in several states, and the U.S. Food and Drug Administration (FDA) are investigating a multistate outbreak of Listeria monocytogenes infections linked to enoki mushrooms. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=411282 https://www.cdc.gov/listeria/outbreaks/enoki-mushrooms-03-20/index.html Tue, 10 Mar 2020 15:00:00 EST Diseases & Conditions Food Safety Food Safety Listeriosis CDC, several states, and the U.S. Food and Drug Administration (FDA) investigated a multistate outbreak of Listeria monocytogenes infections linked to hard-boiled eggs. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=411281 https://www.cdc.gov/listeria/outbreaks/eggs-12-19/index.html Wed, 04 Mar 2020 15:00:00 EDT Diseases & Conditions Food Safety Food Safety Listeriosis On December 23, 2019, Almark Foods expanded its recall to include all hard-boiled eggs produced at its Gainesville, Georgia, facility. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=411280 https://www.cdc.gov/listeria/outbreaks/eggs-12-19/index.html Mon, 23 Dec 2019 15:00:00 EDT Diseases & Conditions Food Safety Food Safety Listeriosis CDC, public health and regulatory officials in several states, and the U.S. Food and Drug Administration (FDA) are investigating a multistate outbreak of Listeria monocytogenes infections linked to hard-boiled eggs. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=411279 https://www.cdc.gov/listeria/outbreaks/eggs-12-19/index.html Wed, 18 Dec 2019 15:00:00 EDT Diseases & Conditions Food Safety Food Safety Listeriosis This investigation is over. This outbreak is a reminder that deli products, such as sliced meats and cheeses, can have Listeria bacteria. People who are at higher risk for Listeria infection should avoid eating hot dogs, lunch meats, cold cuts, and other deli meats, unless they are heated to an internal temperature of 165°F or until steaming hot just before serving. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=402527 https://www.cdc.gov/listeria/outbreaks/deliproducts-04-19/index.html Thu, 26 Sep 2019 12:00:00 EST Diseases & Conditions Food Safety Food Safety Food-Related Diseases Foodborne Disease Listeriosis CDC and several states are investigating a multistate outbreak of Listeria infections linked to deli-sliced meats and cheeses. The U.S. Department of Agriculture's Food Safety and Inspection Service and the U.S. Food and Drug Administration are monitoring the outbreak. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=401138 https://www.cdc.gov/listeria/outbreaks/deliproducts-04-19/index.html Wed, 17 Apr 2019 16:30:00 EST Food Safety Food Safety Food-Related Diseases Foodborne Disease Listeriosis This outbreak appears to be over. In general, people who are at higher risk for Listeria infection should avoid eating hot dogs, lunch meats, cold cuts, other deli meats (such as bologna), or fermented or dry sausages unless they are heated to an internal temperature of 165°F or until steaming hot just before serving. Learn more about how you can take steps to prevent Listeria infection. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=394550 https://www.cdc.gov/listeria/outbreaks/porkproducts-11-18/index.html Tue, 29 Jan 2019 13:00:00 EDT Food Safety Food-Related Diseases Foodborne Disease Listeriosis Outbreaks CDC and public health and regulatory officials in several states investigated a multistate outbreak of Listeria monocytogenes infections linked to ready-to-eat deli ham produced by Johnston County Hams, Inc. The U.S. Department of Agriculture's Food Safety and Inspection Service (USDA-FSIS) monitored this outbreak. This outbreak appears to be over. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=394549 https://www.cdc.gov/listeria/outbreaks/countryham-10-18/index.html Tue, 18 Dec 2018 15:30:00 EDT CDC About CDC Organization Listeriosis Outbreaks CDC collaborated with public health and regulatory officials in several states and the U.S. Food and Drug Administration (FDA) to investigate a multistate outbreak of Listeria monocytogenes infections (listeriosis). Listeria causes a serious, life-threatening illness. Public health investigators used the PulseNet system to identify illnesses that were part of this outbreak. Eight people infected with the outbreak strain of Listeria were reported from four states. Since the initial announcement on March 9, two more ill people were reported from New York. A list of states and the number of cases in each can be found on the Case Count Map page. Whole genome sequencing (WGS) performed on clinical isolates from all eight ill people showed that the isolates were closely related genetically. This close genetic relationship provided additional evidence that people in this outbreak became ill from a common source. Listeria specimens from ill people were collected from September 1, 2016 to March 13, 2017. Ill people ranged in age from less than one year to 89 years, with a median age of 52 years. Five of eight ill people were female. All eight (100%) ill people were hospitalized, including two people from Connecticut and Vermont who died. One of the illnesses was reported in a newborn. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=380602 https://www.cdc.gov/listeria/outbreaks/soft-cheese-03-17/index.html Wed, 03 May 2017 13:30:00 EST Food Safety Food-Related Diseases Foodborne Disease Listeriosis Outbreaks No additional people infected with the outbreak strain of Listeria bacteria were reported since the initial announcement on March 17, 2016, and as a result CDC is closing this investigation. Two people from California and Florida got sick from Listeria infection in 2014. Both of them were hospitalized and the person from Florida died of listeriosis. The likely source of their illnesses was identified in late January 2016 when the U.S. Food and Drug Administration informed CDC that whole genome sequencing of Listeria bacteria from a sample of raw chocolate milk produced by Miller's Organic Farm was closely related genetically to Listeria bacteria from the two ill people. CDC recommends that people drink and eat only pasteurized dairy products, including milk, soft cheese, ice cream, and yogurt. Pasteurization is the process of heating milk to a high enough temperature for a long enough time to kill dangerous bacteria. This recommendation is especially important for people at higher risk for foodborne illness: children younger than 5, pregnant women, adults 65 and older, and people with weakened immune systems. More information about raw milk is available on the CDC Food Safety and Raw Milk website. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=358156 https://www.cdc.gov/listeria/outbreaks/raw-milk-03-16/index.html Wed, 14 Dec 2016 12:45:00 EDT Listeriosis CDC collaborated with public health officials in several states and the U.S. Food and Drug Administration (FDA) to investigate a multistate outbreak of Listeria monocytogenes infections (listeriosis). Listeria can cause a serious, life-threatening illness. Public health investigators used the PulseNet system to identify illnesses that may have been part of this outbreak. PulseNet, coordinated by CDC, is the national subtyping network of public health and food regulatory agency laboratories. PulseNet performs DNA fingerprinting on Listeria bacteria isolated from ill people by using techniques called pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS). CDC PulseNet manages a national database of these DNA fingerprints to identify possible outbreaks. A total of nine people infected with the outbreak strains of Listeria were reported from four states since September 13, 2013. A list of states and the number of cases in each can be found on the Case Count Map page. Listeria positive specimens were collected from September 13, 2013, to May 3, 2016. Three illnesses were reported in 2016. The remaining six illnesses reported during 2013-2015 were identified through a retrospective review of the PulseNet database. Ill people ranged in age from 56 to 91 years, with a median age of 76. Seventy-eight percent of ill people were female. All nine (100%) ill people were hospitalized, including three people who died. Listeriosis was considered to be a cause of death for one person in Connecticut. For the two deaths in Maryland and Washington, listeriosis was not considered to be a cause of death. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=358154 https://www.cdc.gov/listeria/outbreaks/frozen-vegetables-05-16/index.html Fri, 15 Jul 2016 13:45:00 EST Listeriosis CDC collaborated with public health officials in several states and the U.S. Food and Drug Administration (FDA) to investigate a multistate outbreak of Listeria monocytogenes infections (listeriosis). Listeria can cause a serious, life-threatening illness. Public health investigators used the PulseNet system to identify illnesses that may have been part of this outbreak. PulseNet is the national subtyping network of public health and food regulatory agency laboratories coordinated by CDC. DNA "fingerprinting" is performed on Listeria bacteria isolated from ill people by using techniques called pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS). CDC PulseNet manages a national database of these DNA fingerprints to identify possible outbreaks. WGS gives a more detailed DNA fingerprint than PFGE. A total of 19 people infected with the outbreak strain of Listeria were reported from nine states. A list of states and the number of cases in each can be found on the Case Count Map page. Listeria specimens were collected from July 5, 2015 to January 31, 2016. Ill people ranged in age from 3 years to 83, and the median age was 64. Of ill people, 74% were female. All 19 (100%) ill people were reported as hospitalized, and 1 person from Michigan died as a result of listeriosis. One of the illnesses reported was in a pregnant woman. WGS was performed on Listeria isolates from all 19 ill people and showed that the isolates were closely related genetically. This close genetic relationship means that people in this outbreak were more likely to share a common source of infection, such as a contaminated food. According to the Public Health Agency of Canada, ill people in Canada were infected with the same outbreak strain of Listeria. Whole genome sequencing of clinical isolates from ill people in Canada showed that the isolates were closely related genetically to Listeria isolates from ill people in the United States. This outbreak appears to be over. However, Listeria remains an important cause of serious, life-threatening human illness in the United States. For more information about Listeria and steps that people can take to reduce their risk of infection, visit CDC's Listeria webpage. CDC, several states, and the U.S. Food and Drug Administration (FDA) investigated a multistate outbreak of Listeria monocytogenes infections (listeriosis). A total of 19 people infected with the outbreak strain of Listeria were reported from nine states. All 19 people were hospitalized, and one person from Michigan died as a result of listeriosis. One illness was reported in a pregnant woman. Whole genome sequencing (WGS) performed on Listeria isolates from all 19 ill people showed that the isolates were closely related genetically. According to the Public Health Agency of Canada, ill people in Canada were infected with the same outbreak strain of Listeria. WGS performed on clinical isolates from ill people in Canada showed that the isolates were closely related genetically to Listeria isolates from ill people in the United States. Epidemiologic and laboratory evidence indicated that packaged salads produced at the Dole processing facility in Springfield, Ohio and sold under various brand names were the likely source of this outbreak. On January 27, 2016, Dole voluntarily recalled all salad mixes produced in the Springfield, Ohio processing facility. Any recalled salad mixes still on the market or in consumers' homes would be past their expiration dates. https://tools.cdc.gov/podcasts/download.asp?m=321471&c=358155 https://www.cdc.gov/listeria/outbreaks/bagged-salads-01-16/index.html Thu, 31 Mar 2016 09:00:00 EST Listeriosis