‘I believe it happened at slaughter’ and other delusions: 9 sickened with E. coli from Worthy Burgers in Vermont, STEC found in unopened beef

Vermont health inspectors found the DNA of Shiga toxin in unopened packaged beef at a South Royalton restaurant and believe that undercooked hamburgers at Worthy Burger were the source of an E. coli contamination that sickened several people in late summer, a Vermont health official said Tuesday.

happy.cowsBradley Tompkins, a health surveillance epidemiologist with the Department of Health, also said two more cases of E. coli have been linked to people who dined at the restaurant, and that there now are six confirmed and three probable cases of E. coli in the Vermont outbreak. All have recovered, although to varying degrees, he said.

Tompkins said eight of the nine diners ate ground beef at Worthy Burger between the end of August and the middle of September, when investigators with the Vermont Department of Health inspected the restaurant, recommended some changes, and took some beef and lettuce, which is served on the hamburgers, to test.

The lettuce tested negative — “we do not believe lettuce played a role in this outbreak,” Tompkins said — but the health department found the DNA for Shiga toxin in the ground beef.

When they tried to grow the E. coli in the lab, however, it came out to be a slightly different strain than the one found in the patients from Vermont. Still, Tompkins said, the department believes the beef is to blame.

“It’s certainly not conclusive that it did come from the ground beef, (but) based on the interviews that were done with the patients and that we found the E. coli and the Shiga toxins … we do believe the outbreak was caused by the ground beef that was being undercooked from the restaurant,” Tompkins said.

Asked which farm the beef came from and where it was slaughtered and packaged — Worthy Burger relies on local suppliers for its grass-fed beef and other food — Tompkins referred a reporter to the U.S. Department of Agriculture’s Food Safety and Inspection Service, which oversees slaughterhouses.

USDA spokeswoman Gabrielle Johnston said “there’s still debate whether it’s actually been linked to the beef” and said the matter is “still under investigation.”

Aaron Lavallee, another USDA spokesman who was on the same phone line with Johnston, said the agency was not at a point where it would name which slaughterhouses are being investigated, but said officials are “trying to trace this back all the way to the slaughter facility.”

cow.poop.spinachWorthy Burger’s Executive Chef Jason Merrill said on Tuesday the beef that was tested was taken from the restaurant’s walk-in cold storage in its original packaging from a Vermont slaughterhouse, leading him to suggest the contamination could have occurred at what he called a “USDA-inspected plant.”

“The samples they took from us were in a receiving walk-in, and we hadn’t even touched it,” he said.

“I believe the beef was OK (at the farm), and when it got to the slaughterhouse, that’s when the infection happened,” Merrill said.

Stick it in: No more pink in the middle for Worthy Burger after 7 sickened

Do you cook burgers to 155F and hold for 15 seconds?

Worthy Burger’s executive chef, Jason Merrill, responded, “Our customers are telling us what temperature they’d like their hamburger.”

barfblog.Stick It InBradley Tompkins, a health surveillance epidemiologist with the Vermont Department of Health, said the agency confirmed five cases and identified two “probable cases” of shiga toxin-producing E. coli.

In discussing the changes recommended to Worthy Burger, Tompkins said diners or people cooking at home should not rely on the color of their meat to determine if it’s done.

“We want people to be cooking their meat to the appropriate temperature, and checking that the meat has reached the appropriate temperature,” Tompkins said. “People go on color … we would encourage people not to do that.”

Among the changes Worthy Burger has made this month is to alter the wording for its signature Worthy Burger.

Where it once said “a 6 oz grass fed patty served pink in the middle,” it now reads simply “a 6 oz grass fed patty,” according to a menu on the restaurant’s website.

The restaurant has been celebrated in the localvore movement, and Gov. Peter Shumlin was seen eating there this spring.

Use a thermometer? 5 sick in Vermont E. coli outbreak

A South Royalton restaurant voluntarily closed for several days recently and switched food vendors after being contacted by state officials who are investigating an E. coli “cluster” that has sickened at least five people.

worthy.burgerMeanwhile, state officials have released few details about their investigation, including the potential source of the contamination or how widespread the risk may be.

Jason Merrill, executive chef at Worthy Burger, said the Vermont Department of Health approached the restaurant’s leadership team last week and asked them to consider changing some of their food vendors out of precaution.

“They haven’t told me which ones they wanted me to change, so I changed pretty much all of my vendors,” Merrill said, noting he uses six or seven area farms to supply ingredients for the menu at Worthy Burger, which specializes in locally sourced food.

At least five people have contracted E. coli in what state officials have referred to as a “cluster,” according to the Vermont Department of Health. The locations of the five laboratory-confirmed cases, as well as a sixth case listed as “probable,” haven’t been divulged by health officials nor is it clear how the six cases are connected.

The health department is working on identifying the source of the contamination, spokesman Ben Truman said on Thursday.