All posts by admin

Angus Beef Patties E. coli

Outbreak: Angus Beef Patties E. coli
Product: Beef PattiesInvestigation Start Date: 09/17/2007
Location: Multi-StateEtiology: E. coli (STEC) O157:H7
Earliest known case onset date: 08/01/2007Latest case onset date: 10/08/2007
Confirmed Case Count: 47Positive Food Samples : 17
Minnesota Department of Health (MDH) staff quickly identified the outbreak vehicle when the first four detected outbreak cases all reported consuming the same brand of premade beef patties. Investigators tracked down detailed product information from two cases, and two leftover boxes of beef patties obtained from case households were found … Continue Reading ››

Raw Flour E. coli

Outbreak: Raw Flour E. Coli
Product: Raw FlourInvestigation Start Date: 6/1/2016
Location: MultistateEtiology: E. coli O121
Earliest known case onset date: 12/21/2015Latest case onset date: 9/5/2016
Confirmed Case Count: 63Positive Environmental Samples: 39
Hospitalizations: 17Deaths: 0
CDC worked with public health and regulatory officials in many states and the U.S. Food and Drug Administration (FDA) to investigate a multistate outbreak of Shiga toxin-producing Escherichia coli (STEC) infections.
Public health investigators used the PulseNet system to identify illnesses that may be part of this outbreak. PulseNet, coordinated by CDC, … Continue Reading ››

Listeria Soft Cheese

Outbreak: Listeria Soft Cheese
Product: Soft CheeseInvestigation Start Date: 06/27/2013
Location: Multi-StateEtiology: Listeria monocytogenes
Earliest known case onset date: 5/14/2013Latest case onset date: 6/16/2013
Confirmed / Presumptive Case Count: 5 / 0Positive Samples (Food / Environmental): 18 / 1
Five outbreak cases of listeriosis were identified in Minnesota, Indiana, Illinois, and Ohio. The use of the CDC Listeria Initiative questionnaire to identify a soft cheese signal, along with re-interviewing cases (or their proxies) and calling restaurants to get specific details on cheese brand and cheese type were critical … Continue Reading ››

Protected: Faerieworlds Festival – unlikely to be published (lack of content)

Outbreak: Faerieworlds Festival
Product: Food vendor stallsInvestigation Start Date: 8/2/2006
Location: Veneta, OREtiology: Norovirus
Earliest known case onset date: 7/29/2006Latest case onset date: 8/2/2006
Confirmed / Presumptive Case Count: 4 / 0Positive Environmental Samples: 0
On August 2, the Lane County Public Health received eight separate reports of gastrointestinal illness from attendees of an arts and music festival held in Veneta, Oregon July 29-30. Initial inquiries by environmental health staff suggested several potential problems that could have posed a risk of transmission. The likely culprit was … Continue Reading ››

Hubbard Splash Fountain

Outbreak: Hubbard Splash Fountain
Product: Splash Fountain in Hubbard, ORInvestigation Start Date: 07/25/03
Location: Marion County, OREtiology: Shigella sonnei
Earliest known case onset date: 07/16/03Latest case onset date: 08/17/03
Confirmed / Presumptive Case Count: 19 / 37Positive Samples: 0
Investigation of an outbreak of gastrointestinal illness erupted among children in a small community in Marion County, Oregon. Investigation by epidemiologists found that the illnesses were due to the fecal bacterium Shigella sonnei, and traced to an unusual common source: a splash fountain. This outbreak underscores the risk of large … Continue Reading ››

Protected: 2002 Lane County Fair

Outbreak: 2002 Lane County Fair
Product: Animal Petting ExhibitInvestigation Start Date: 08/21/02
Location: Eugene, OREtiology: E. coli O157
Earliest known case onset date: 08/02Latest case onset date: 08/02
Confirmed / Presumptive Case Count: 56 / 14Positive Environmental Samples: 1
The 2002 Lane County Fair was the site of the largest outbreak of E. coli O157 in state history with 56 confirmed cases, 14 presumptive cases and 11 cases with hemolytic uremic syndrome (HUS). Oregon epidemiologists discovered that an animal exhibit, not food vendors, was the source of the outbreak. … Continue Reading ››

Diaper Changing Station Norovirus

Outbreak: Diaper Changing Station Norovirus
Product: Diaper changing StationInvestigation Start Date: 05/16/2012
Location: Washington County, OREtiology: Norovirus
Earliest known case onset date: 05/15/2012Latest case onset date: 05/15/2012
Confirmed / Presumptive Case Count: 12 / 4Positive Environmental Samples: 1
Hospitalizations: 0Deaths: 0
This outbreak initially appeared to be a standard foodborne point-source outbreak from a restaurant with known previous critical violations. However, upon extensive interviewing, it transpired that a toddler with explosive diarrhea and the associated contaminated surfaces were the source of the outbreak.

Protected: Odwalla Juice

Outbreak: Odwalla Juice
Product: Odwalla JuiceInvestigation Start Date: Oct. 20, 1996
Location: Multi-state WA, CA, CO, BCEtiology: E. coli O157
Earliest known case onset date: 10/13/1996Latest case onset date: 11/08/1996
Confirmed Case Count: 67 (12 with HUS, 1 death)Positive Food Samples: 1
The health conscious juice company Odwalla became the epicenter of a 1996 outbreak of E. coli O157. Health officials in the Pacific Northwest identified Odwalla’s unpasteurized apple juice as the source of the outbreak. This outbreak lead to industry wide changes in the use of flash pasteurization, a high temperature, … Continue Reading ››

Shopping Bag Norovirus

Outbreak: Reusable plastic shopping bag
Product: Reusable Shopping BagInvestigation Start Date: 10/13/2010
Location: Single CountyEtiology: Norovirus
Earliest known case onset date: 10/10/2010Latest case onset date: 10/12/2010
Confirmed / Presumptive Case Count: 7 / 5Positive Environmental Samples: 1
Health officials made a rare discovery with this outbreak by identifying a reusable shopping bag as the vehicle for norovirus investigation. The reusable shopping bag was stored in a bathroom used by the index case during her illness onset. The bag contained cookies, chips and other food items that were … Continue Reading ››

Pennsylvania Raw Milk

Outbreak: Pennsylvania Raw Milk Campylobacter
Product: Raw MilkInvestigation Start Date: 01/24/2012
Location: Maryland, New Jersey, West VirginiaEtiology: Campylobacter jejuni
Earliest known case onset date: 01/14/2012Latest case onset date: 02/01/2012
Confirmed / Presumptive Case Count: 81 / 67Positive Samples: 2
Hospitalizations: 10Deaths: 0
While it is legal to sell unpasteurized raw milk in Pennsylvania and illegal to sell in neighboring Maryland, New Jersey and West Virginia, this outbreak included cases in residents from all of these states. While additional regulations by state officials could be considered, such as monthly pathogen testing, … Continue Reading ››