Iowa HHS Announces Investigation of Legionnaires’ Disease Cluster in Marshalltown - Over

[Commonground]

• Thursday, September 4, 2025
• News Release

The Iowa Department of Health and Human Services (Iowa HHS) is investigating a cluster of Legionnaires’ disease cases among individuals living in north central Marshalltown. Since the beginning of the investigation, 21 individuals have been diagnosed with Legionnaires’ disease and an older adult with underlying health conditions has died. Iowa HHS shares our condolences to the family and friends of this individual.

Legionnaires' disease is caused by Legionella bacteria and thrives in warm water environments and is typically spread through the inhalation of aerosolized water droplets, such as mist from cooling towers, hot tubs, and decorative fountains. Legionnaires’ disease is not contagious and most healthy people who are exposed to Legionella bacteria do not get sick.

“Iowans should know that Legionnaires’ disease can be effectively treated with antibiotics if diagnosed early. Adults aged 50 and older, those who smoke or individuals with chronic lung conditions should seek medical care promptly if they develop flu-like or respiratory symptoms,” said Dr. Robert Kruse, Medical Director at Iowa HHS.

Continued: https://hhs.iowa.gov/news-release/20...r-marshalltown

[Shiloh]

Source: https://www.kcci.com/article/legionn...-says/66016520

Legionnaires' disease cases up to 34 in Marshall County, Iowa officials say
ted: 4:59 PM CDT Sep 9, 2025
Kelby Wingert
Digital Editor
MARSHALLTOWN, Iowa —

Iowa public health officials now say there have been 34 cases of Legionnaires' disease in Marshall County since August.

The Iowa Department of Public Health first confirmed the cluster of Legionnaires' disease last week. The number increased from 30 on Monday to 34 Tuesday, state officials said.

A retired Catholic priest, the Rev. Bernard "Bernie" Grady, is the only reported fatality of this outbreak as of Sept. 9...

[Shiloh]

Source: https://www.kcci.com/article/legionn...-says/66016520


Legionnaires' disease cases rise to 38 in Marshall County, Iowa officials say
Updated: 5:20 PM CDT Sep 11, 2025
Kelby Wingert
Digital Editor

MARSHALLTOWN, Iowa —

Iowa public health officials now say there have been 38 cases of Legionnaires' disease in Marshall County since August.

The Iowa Department of Public Health first confirmed the cluster of Legionnaires' disease last week. The number increased from 30 on Monday to 34 Tuesday, where it remained on Wednesday, state officials said...

[Shiloh]

Source: https://www.kcci.com/article/legionn...ys/66016520

68 cases of Legionella now reported in Marshall County, Iowa officials say
Updated: 5:10 PM CDT Sep 17, 2025
Kelby Wingert
Digital Editor
MARSHALLTOWN, Iowa —

Iowa public health officials now say there have been 61 cases of Legionella in Marshall County since August.

The Iowa Department of Public Health first confirmed the cluster of Legionnaires' disease on Sept. 4, and said there were 18 cases. On Wednesday, the state said there have now been 68 cases reported.

A retired Catholic priest, the Rev. Bernard "Bernie" Grady, is the only reported fatality of this outbreak as of Sept. 14...

[Shiloh]

Source: https://www.kcci.com/article/kcci-in...break/67954422


KCCI Investigates: Legionella cases up to 70; FFA field trip delayed due to outbreak
Updated: 2:20 PM CDT Sep 19, 2025
Suzanne Behnke
Chief Investigative Reporter
MARSHALLTOWN, Iowa —

Another case of Legionella has been confirmed in the Marshall County outbreak.

The total is now at 70 cases, according to state officials. So far, there's only been one death...

[Shiloh]

Source: https://www.desmoinesregister.com/st...d/86301083007/

2nd death reported in Legionnaires' disease outbreak in Marshalltown
Kim Norvell Des Moines Register
23 minutes ago

Show Caption

A second person has died as part of the Legionella outbreak in Marshalltown, the Iowa Department of Health and Human Services announced Monday, Sept. 22.

The person, described as an elderly adult with underlying health conditions, died on Thursday. There have been 71 cases of legionellosis since the outbreak started in late August...

[Shiloh]

Source: https://www.thegazette.com/health-ca...-no-new-cases/

Marshalltown Legionella outbreak over after 28 days with no new cases
A total of 74 people were sickened, and two people died during the outbreak, which began in August
By Robert Maharry, - Marshalltown Times-Republican
Nov. 7, 2025 12:18 pm

MARSHALLTOWN — The Legionnaires’ disease outbreak that sickened 74 people and led to two deaths in Marshalltown in August and September has been declared over after more than a month without any new cases...