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Beloved dog may be source of man’s illness

He loses parts of arms, legs to usually harmless bacteria

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In this Aug. 2, 2018 file photo provided by Dawn Manteufel, Greg Manteufel lays in his hospital bed at Froedtert Hospital in Milwaukee. He lost parts of his arms and legs, as well as the skin of his nose and part of his upper lip from capnocytophaga, a bacteria commonly found in the saliva or cats and dogs which almost never leads to people getting sick, unless the person has a compromised immune system. Manteufel was perfectly healthy when he got sick in June of 2018. Over the last seven years, a team of researchers at Brigham and Women's Hospital in Boston, connected to Harvard Medical School, have tested other healthy people who were affected and developed a theory on why they were affected- a gene change in all the victims.
In this Aug. 2, 2018 file photo provided by Dawn Manteufel, Greg Manteufel lays in his hospital bed at Froedtert Hospital in Milwaukee. He lost parts of his arms and legs, as well as the skin of his nose and part of his upper lip from capnocytophaga, a bacteria commonly found in the saliva or cats and dogs which almost never leads to people getting sick, unless the person has a compromised immune system. Manteufel was perfectly healthy when he got sick in June of 2018. Over the last seven years, a team of researchers at Brigham and Women's Hospital in Boston, connected to Harvard Medical School, have tested other healthy people who were affected and developed a theory on why they were affected- a gene change in all the victims. (Dawn Manteufel via AP) (Carrie Antlfinger/Associated Press) Photo Gallery

WEST BEND, Wis. — It’s hard to regard Ellie as a menace.

When Greg Manteufel is frustrated or feeling down, she sits by him. At night, she sleeps under his covers. At dinner, she’s there next to him, knowing he’ll throw something her way. She belies the stereotype of the vicious pit bull.

“We love her like she’s our daughter,” he said of the dog.

And yet, Ellie may be the reason Manteufel, 49, nearly died.

Gravely ill, he lost parts of his arms and legs, as well as the skin of his nose and part of his upper lip. The cause was capnocytophaga, a germ from Ellie’s mouth or from another dog he encountered.

Capnocytophaga is commonly found in the saliva of cats and dogs and almost never leads to people getting sick, unless the person has a compromised immune system. But Manteufel was perfectly healthy. In fact, he doesn’t think he’d ever used his health insurance before he fell ill.

The case is extremely rare and doctors at his hospital, Froedtert & the Medical College of Wisconsin, had no explanation for why he got so sick. But over the last 10 years there have been at least five other healthy people who have had severe reactions to the germ. A team of researchers connected with Harvard Medical School has developed a theory on why — a gene change in all the victims.

And their finding means doctors can’t rule out the capnocytophaga bacteria could strike Manteufel and other victims again.

Flulike symptoms

Greg Manteufel thought he was getting the flu in June of 2018. He had a fever, vomiting and diarrhea. But when he started getting confused, his family took him to the hospital.

Doctors did blood cultures and found capnocytophaga, which caused sepsis, a severe blood infection that led to his blood pressure dropping and many of his organs shutting down.

“Do what you have to, to keep me alive,” he told the doctors.

He had so much to live for — foremost, his wife of 16 years, Dawn, and 26-year-old son, Mike. He was just starting to get really good at his day job, painting houses. He cherished his Harley-Davidson Electra Glide. He was in the middle of fixing up his ’66 El Camino. And of course there was Ellie, the pup.

And so he persisted, through more than 20 surgeries, including amputations of his left and right arms just below the elbow, and legs through the middle of the knee.

His wife and son stayed optimistic, because he was.

“Greg said he didn’t come this far to lay down and let this beat him,” Dawn Manteufel said.

He was out of the in-patient rehab unit in about two weeks, learning to move from his wheelchair to the bed, toilet and car. The usual stay is three to four weeks, said Dr. David Del Toro, medical director for the inpatient rehab unit at Froedtert.

Manteufel made similar quick advances using his arm prosthetics and leg prosthetics.

“He does not seem like any other patient I’ve met before,” Del Toro said. “He’s just, you know, full speed ahead.”

Meanwhile, researchers at Brigham and Women’s Hospital in Boston, connected to Harvard Medical School, as well as Dana-Farber Cancer Institute and Beth Israel Deaconess Medical Center had been investigating cases like his.

The team has done genetic testing on five otherwise healthy people who suffered capnocytophaga infections to see if they could find anything in common. They discovered all had a gene connected to the immune system that was working differently — a genetic variant.

“It was a really thrilling moment,” said Elizabeth Fieg, a genetic counselor at Brigham and Women’s Hospital. “The stakes are so high with these cases and the patients have gone through so much.”

They believe it makes those people more susceptible to developing severe medical problems from capnocytophaga. But they are also trying to determine if there are other risk factors.

Of the five in the study, three survived with amputations and two did not. Fieg hopes their research can determine why some did not survive.

She also hopes if their theory is confirmed, it will help diagnose cases faster, and perhaps save lives and limbs.

That’s why Greg Manteufel jumped at the chance to take part when he was approached in August.

Researchers need to gather more evidence, but hope to publish their study in the next year to 18 months.

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