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4 dead, 31 infected after bacterial outbreak hits Seattle hospital

Bacteria of donovanosis infection. Computer illustration of Klebsiella granulomatis bacteria causing genital ulcers in a case of donovanosis. This disease, also known as granuloma inguinale, is a rare sexually transmitted infection (STI) that causes open lesions that can destroy underlying tissue. Treatment is with antibiotics.

Four patients at a downtown Seattle hospital are dead in connection to an outbreak of a bacteria often found in health care settings that has developed resistance to some antibiotics.

The infected patients, who contracted Klebsiella, were hospitalized in various departments, including inpatient medical beds, an ICU, and an operating room at Virginia Mason Medical Center, the hospital said in a statement released Wednesday.

Beginning in October 2022, hospital staff said it detected an increase in cases of Klebsiella pneumoniae bacteria at its downtown campus.

So far there have been 31 confirmed infections associated with strain, officials said, and the source of transmission remained under investigation Wednesday.

Officials said the latest known confirmed case was identified on April 3.

The four who died after contracting the bacteria already had complex diagnoses when they arrived at the hospital, so it’s unclear how Klebsiella contributed to their deaths, the hospital said.

Bacteria of donovanosis infection. Computer illustration of Klebsiella granulomatis bacteria causing genital ulcers in a case of donovanosis. This disease, also known as granuloma inguinale, is a rare sexually transmitted infection (STI) that causes open lesions that can destroy underlying tissue. Treatment is with antibiotics.Bacteria of donovanosis infection. Computer illustration of Klebsiella granulomatis bacteria causing genital ulcers in a case of donovanosis. This disease, also known as granuloma inguinale, is a rare sexually transmitted infection (STI) that causes open lesions that can destroy underlying tissue. Treatment is with antibiotics.

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What is Klebsiella pneumoniae?

Klebsiella pneumoniae is a type of bacteria that lives naturally in our environment and can be part of the normal bacteria that lives in a healthy digestive system.

Health officials said infections commonly occur among sick or immunocompromised patients who are receiving treatment for other conditions.

Most people who contract it will never experience an infection, but occasionally Klebsiella pneumoniae can lead to urinary tract infections and other complications.

Increased safety measures

According to hospital officials, the risk of transmission is extremely low for patients.

Sydney Bersante, interim president of Virginia Mason Medical Center, said the hospital has implemented increased safety measures since identifying the outbreak, and has provided treatment to infected patients.

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“While the risk of transmission is extremely low for patients, we continue to take proactive steps to avoid additional transmission,” Bersante wrote in a statement. “We are continuing to investigate the source of this outbreak jointly with local and state public health partners.”

Natalie Neysa Alund covers breaking and trending news for USA TODAY. Reach her at [email protected] and follow her on Twitter @nataliealund.

This article originally appeared on USA TODAY: 4 dead in klebsiella pneumoniae outbreak at Seattle hospital