Feds use technology to track Dole listeria outbreak


Federal agencies are using a relatively new technology to track the recent listeria outbreak that was linked to Dole’s production facility in Springfield last week.

The CDC and FDA are using Pulsenet, a national laboratory network of public health and food regulatory agency labs, to track the outbreak, said to Kate Fowlie, a spokeswoman for the CDC.

The CDC used a technique called whole genome sequencing to link the outbreak to Springfield.

DNA fingerprints were pulled from samples of listeria from ill patients, Fowlie said. Public health labs across the U.S. upload the DNA fingerprints to Pulsenet, and the CDC can then review data to see if something unusual or unexpected is happening, indicating a possible outbreak, Fowlie said.

Whole genone sequencing shows the complete genetic makeup of an organism, said Lauren Kotwicki, a spokeswoman for the U.S. Food and Drug Administration. She likened it to a construction project. Instead of a building’s outline, the technique can show the building’s entire blueprint, Kotwicki said.

“Because the technology allows the FDA to identify the cause of an outbreak more quickly, the FDA is able to apply it in ways that have the potential to help reduce food-borne illnesses and deaths over the long term both in the U.S. and abroad,” Kotwicki said.

In this case, the listeria samples taken from sick patients were genetically similar, Fowlie said. The Ohio Department of Health later took samples of packaged salads produced in Springfield and found they shared many genetic traits with the samples from patients.

“Also, epidemiologic evidence showed of five people who were asked about eating packaged salad, all five had reported eating packaged salads in the month before their illness began, and two of two people who remembered the brand of packaged salad eaten said Dole brand,” Fowlie said. “This epidemiologic and lab information linked the illnesses to Dole brand packaged salads produced at the Dole processing facility in Springfield, Ohio.”

Dole voluntarily closed its Springfield facility Thursday, after one death and 12 illnesses in several states. The CDC has been investigating the cases since September last year, but they were not linked to the Springfield production site until this month.

So far, no deaths or illnesses have been reported in Ohio, according to state and local health officials.


Reader Comments ...


Next Up in Nation World

VIDEO: Florida school shooting suspect Nikolas Cruz shown fighting students in 2016
VIDEO: Florida school shooting suspect Nikolas Cruz shown fighting students in 2016

The man allegedly behind the fatal Florida high school shooting apparently has a disturbing past that is coming to light. A school fight that was captured on camera a little more than a year ago is the latest development. Authorities said 19-year-old Nikolas Cruz killed 17 people at Marjory Stoneman Douglas High School in Parkland. Cruz was ...
Sylvester Stallone assures fans he is 'alive and well' after death hoax goes viral
Sylvester Stallone assures fans he is 'alive and well' after death hoax goes viral

Actor Sylvester Stallone is the victim of a death hoax. A rumor claiming that the 71-year-old actor had passed away recently surfaced on social media — and he was not happy about it. >> Read more trending news  Stallone took to Twitter to express his annoyance. “Please ignore the stupidity,” the &ldquo...
Champaign County Pet of the Week
Champaign County Pet of the Week

Evelyn is a 2-year-old female Calico cat. She came to us as a lost kitten when she was 2 weeks old. Evelyn likes to try to be an escape artist and loves attention. She is up to date on vaccinations and has tested negative for feline leukemia. Come visit Evelyn at the Paws Animal Shelter, 1535 W. U.S. Highway 36, in Urbana. You can also visit www.facebook...
Opinion: Official portraits test our feelings about the Obama era

Well, what did you think? What sounded to me like the Gasp Heard ’Round the World followed the unveilings of the official portraits of former President Barack Obama and first lady Michelle Obama at the National Portrait Gallery in Washington. Or, as my own immediate, largely unschooled and low-brow reaction sounded, “Ooooh … ahhhh...
Opinion: If nationalism is on rise, where’s outrage over Russia?

I’m confused. These days, “nationalism” is all the rage on the right. I put it in quotes because there are a lot of different ideas of what nationalism means. Some of it is just rah-rah “USA No. 1” sloganeering. For others, nationalism is basically code for white identity politics. And for the so-called “alt-right...
More Stories