South Dakota
Bovine tuberculosis confirmed in South Dakota steer, investigation continues
PIERRE, S.D. — A case of Bovine tuberculosis has been confirmed in a beef steer from South Dakota, marking the first case in the state since 2021. The infection was detected through routine meat inspections and is currently under investigation to trace its origin.
According to Beth Thompson, South Dakota state veterinarian and executive secretary of the South Dakota Animal Industry Board, the infected steer was identified in late October during routine inspection at a Wisconsin packing plant.
Kennedy Tesch / Agweek
“When cattle are slaughtered at inspected plants, there are trained inspectors who look at the carcass at various points in the process,” Thompson said. “This steer was found at slaughter, meaning an inspector noticed some sort of pathology, pulled the animal, and submitted samples.
The United States Department of Agriculture Animal and Plant Health Inspection Service’s National Veterinary Services Laboratories in Ames, Iowa, confirmed samples Nov. 5 from a beef steer to be tuberculosis positive by PCR. The culture isolate recovered was reported Dec. 6 to be Mycobacterium bovis.
Records from the packing plant linked the animal to a feedlot in Hamlin County, South Dakota. However, additional investigation is ongoing to identify the source herd from which the animal originated.
“The traceback was fairly quick and easy on this animal, to the feed yard,” Thompson said. “The slaughter plant had records which identified the farms who had contributed to the load. We now need to determine the origin of the steer, as it was moved onto the feedlot.”
The State Veterinarian’s office is working closely with the feedlot owner as well as other producers who may have sold animals purchased by the feedlot, USDA officials, and area veterinarians to locate the steer’s source herd. Necessary precautions are being taken to protect the health of South Dakota’s cattle industry.
“One of our field veterinarians is working closely with the feedlot owner as a point of contact,” Thompson said. “The work we are doing now with both the feedlot owner and the source herds includes testing and tracking animals via records. The herd owners we are working with in this investigation have been very cooperative, and we have started TB testing.”
Bovine tuberculosis is a chronic, slow-progressing respiratory disease that primarily affects cattle. While infected animals can transmit the disease to others in close contact, cattle rarely exhibit visible signs of illness. This makes it difficult to detect without regular testing.
The disease was nearly eradicated in the United States due to a longstanding campaign, and the disease is now rare. South Dakota has been recognized as free of bovine TB since 1982, and this is the first case in the state in over three years.
Thompson wants the public to be reassured that Bovine tuberculosis does not pose a threat to food safety in the United States, specifically thanks to strict pasteurization and meat inspection processes.
“There are trained personnel in the plants, looking at the carcasses and watching the slaughter process,” Thompson said. “They are trained to detect pathologies, and are also trained in other areas of food safety at a plant level. The risk of infection from eating meat from an infected animal is low; the main risk is to the plant employees who handle the carcasses.”
For further updates on the investigation and precautions being taken, contact the South Dakota Animal Industry Board or USDA APHIS.
Kennedy is a reporter for Agweek based out of South Dakota. She grew up on an organic crop farm where her family also raises cattle in eastern South Dakota. She graduated from South Dakota State University in 2023 with a major in agricultural communication and minor in agricultural business. She enjoys connecting with producers and agribusinesses across the region while reporting on all things agriculture.
A tornado watch has been issued for much of central and eastern South Dakota as forecasters warn conditions are favorable for tornadoes, large hail and damaging winds Wednesday evening.
The National Weather Service’s Storm Prediction Center issued the watch at 4:05 p.m. CDT, and it will remain in effect until 11 p.m. It includes dozens of counties across central and eastern South Dakota, as well as parts of southeastern North Dakota and western Minnesota.
Forecasters expect thunderstorms to develop along and ahead of a cold front moving southeast across the Dakotas. The strongest storms could become supercells capable of producing all severe weather hazards.
The severe weather threat is expected to continue Thursday, when another round of strong to severe thunderstorms could develop across parts of South Dakota. Large hail, damaging winds and tornadoes will again be possible.
What are expected impacts of South Dakota storms?
Storms that remain isolated could produce tornadoes and very large hail before merging into a line of thunderstorms later in the evening, according to the Storm Prediction Center. Once storms organize into a line, damaging winds are expected to become the main threat, although brief tornadoes and hail will remain possible.
The National Weather Service office in Sioux Falls said portions of southeastern South Dakota face a Level 2 out of 5 risk for severe weather Wednesday evening. Atmospheric conditions include high instability, increasing wind shear and abundant moisture, creating an environment supportive of severe thunderstorms.
In addition to severe weather, some areas could receive heavy rainfall. Most locations are expected to receive between a quarter-inch and three-quarters of an inch of rain, although isolated areas could see more than an inch. Widespread flooding is not expected, but localized flooding could occur in areas that recently received heavy rainfall.
Where will storms hit in South Dakota?
Storms are expected to develop in central South Dakota between late afternoon and early evening before moving east through the night. Forecasters expect the strongest storms to reach the Interstate 29 corridor between about 10 p.m. and midnight.
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Brandi D. Addison covers weather across the United States as the Weather Connect Reporter for the USA TODAY Network. She can be reached at baddison@gannett.com.
See Republican Zach Lahn speak after primary win in governor’s race
GOP gubernatorial candidate Zach Lahn speaks to his supporters during an election night watch party on June 2, 2026, in West Des Moines.
The makeup of the Legislature was up in the air as of 1 a.m. after South Dakota’s primary election.
Ten Republican state lawmakers ousted in 2024 are angling to get their seats back in 2026. Results were mixed for the nine who had primaries on Tuesday, with results still coming in for several races and others set for possible recounts.
Shawn Bordeaux of Rosebud won the state’s only Democratic primary, beating Troy “Luke” Lunderman for a chance to return to the state Senate.
Bordeaux will face Chamberlain Republican Rebecca Reimer in November’s general election. Reimer, who was term-limited in the state House of Representatives, beat Lower Brule Sen. Tamara Grove in Tuesday’s primary.
In Watertown’s District 5, Rep. Josephine Garcia fell in a state Senate primary to incumbent Sen. Glen Vilhauer. Garcia beat Byron Callies in the 2024 primary to earn her seat in the House of Representatives, but opted to challenge Vilhauer for his Senate seat instead of seeking reelection to the House.
Callies, Vilhauer and Garcia are all from Watertown.
Vilhauer won with 59% of the vote. His was one of the first state legislative victories of the night reported on the Secretary of State’s website.
Vilhauer won handily, but he said he wasn’t necessarily expecting to as polls opened on Tuesday.
“I knew it was going to be a battle going in,” Vilhauer said. “She worked hard on her side, and I didn’t know what to expect.”
Callies was among the first to call Vilhauer to congratulate him, around 9:30 p.m.
“I’m happy, because Glen’s a solid legislator,” said Callies, who’s angling to win his seat back in the general election.
Garcia did not return a call seeking comment.
In District 21, Sen. Mykala Voita of Bonesteel beat former Sen. Erin Tobin of Winner in a rematch of their 2024 contest, which Voita won by a few dozen votes that year. This time around, Voita bested Tobin by 1,002 votes.
In response to a request for comment, Voita sent a text reading “Glory to God!”
Tobin did not return a call from South Dakota Searchlight about her race after it was called, but said earlier in the evening she would be “at peace” with the results regardless of what they might be.
Another rematch saw Yanktonites Lauren Nelson and Jean Hunhoff battling for District 18’s state Senate seat. Nelson was a newcomer in 2024 when she beat Hunhoff, who’d spent decades in the Capitol between stints in the House and Senate. On Tuesday, Nelson held off Hunhoff, winning by 243 votes.
Other notable races
- District 4 Rep. Dylan Jordan of Clear Lake, first elected in 2024, finished fourth in a five-way race. As of 1 a.m. Wednesday, he trailed Ryan Kohl of Milbank and former Rep. Fred Deutsch of Florence, in first and second place, respectively. A recount is possible in that race, with 59 votes separating the top two vote-getters while Rep. Kent Roe, of Hayti, came in third place, with 72 fewer votes than Deutsch.
- District 4 has two possible recounts. In the other, Bryant’s Stephanie Sauder beat Clear Lake’s Tim Begalka by 105 votes in the unofficial tally from the Secretary of State.
- District 1 Rep. Logan Manhart of Aberdeen, elected in the 2024 primary, fell to Rep. Nick Fosness, a hospital administrator appointed by Gov. Larry Rhoden in 2025, and newcomer Daniel Kjos.
- Another recount was possible as of Wednesday at 1 a.m., in the District 16 race for House of Representatives. Rep. John Shubeck of Beresford trailed Lisa Bogue of Beresford by 245 votes in unofficial results. Jason VanDenTop of Canton was in third place, trailing Shubeck by 68 votes.
Vote totals incomplete
- Sen. John Carley of Piedmont, who won his first term in 2024, trailed William Meirose of Sturgis by 166 votes as of 1 a.m. Wednesday.
- Former Rep. Tyler Tordsen led Rep. Tony Kayser by two votes in the District 14 primary, with results still coming in. The Sioux Falls men are vying for second place and a spot on the November general election ballot alongside Rep. Taylor Rehfeldt of Sioux Falls, who led by more than 600 votes early Wednesday.
- District 28 Sen. Sam Marty of Prairie City was in a close race with former legislator Ryan Maher of Isabel.
- Former Rep. Gary Cammack of Union Center, who lost his seat in 2024, and Gary Deering of Hereford, led Reps. Terri Jorgenson of Piedmont and Kathy Rice of Blackhawk in the District 29 race.
- In District 30, Hot Springs Sen. Amber Hulse led former Sen. Julie Frye-Mueller of Rapid City by more than 1,300 votes.
- Former Sen. David Johnson of Rapid City led Sen. Curt Voight of Rapid City in a rematch of their 2024 race for District 33 Senate in early results.
- Rep. Heather Baxter of Rapid City has signaled her intention to challenge sitting Secretary of State Monae Johnson for the Republican nomination to that constitutional office at the state’s Republican Party convention this summer. In early results, Baxter trailed former Rapid City Rep. Becky Drury and Rep. Mike Derby in the District 34 primary.
- Early results in the District 35 primary put Sen. Greg Blanc, elected in 2024, in a close race with fellow Rapid City resident Nicole Mitzel.
South Dakota Searchlight is part of States Newsroom, the nation’s largest state-focused nonprofit news organization.
South Dakota
Republican businessman Toby Doeden advances to primary runoff in South Dakota governor’s race
Republican businessman Toby Doeden has advanced to a runoff in South Dakota governor’s race, NBC News projects.
Gov. Larry Rhoden, who replaced Kristi Noem last year when President Donald Trump nominated her to lead the Department of Homeland Security, was battling with Rep. Dusty Johnson and former state House Speaker Jon Hansen for a second spot in the July 28 runoff. The primary will go to a runoff because no candidate eclipsed 35% of the vote.
Trump did not issue an endorsement in the race. Doeden branded himself on his campaign website as “a total political outsider who’s tired of the government’s failure to deliver on its promises” and one of Trump’s “fiercest supporters.”
Rhoden, a former lieutenant governor, agriculture secretary and lawmaker, campaigned on property tax cuts and lowering crime in his bid for a four-year term.
Johnson is the state’s lone representative in the House, where he previously was chair of the Republican Main Street Caucus. Hansen, who was elected to the South Dakota House in 2010, held several leadership positions before he became speaker.
The Republican nominee will be the favorite to win the general election in the solidly red state this fall. A Democrat has not served as governor in South Dakota since the 1970s, and Trump carried the state by 29 points in 2024.
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