Legionella Strikes Again

Following an outbreak in New York City last month, Legionnaires’ disease pops up in Illinois and California.

Written byJef Akst
| 2 min read

Register for free to listen to this article
Listen with Speechify
0:00
2:00
Share

WIKIMEDIA, ALPHA.PRIMA potentially deadly bacterial infection has struck at least six inmates at San Quentin State Prison in San Rafael, California, just north of San Francisco; dozens of others are exhibiting symptoms, according to SFGate. And in Quincy, Illinois, the same infection has claimed seven lives in a veterans’ home, with nearly 40 others already diagnosed, CNN reported. The culprit: Legionella bacteria, which last month killed a dozen and sickened more than 120 people in New York City (NYC).

Just like the 12 NYC victims, all patients in the Illinois veterans’ home who have died following Legionella infection had underlying medical conditions, according to the state’s Department of Public Health. But city officials suspect that the outbreak of Legionnaires’ disease has already spread throughout the home. “Unfortunately, we expect to see additional cases and possibly additional deaths, because the incubation period for Legionnaires’ disease can be up to two weeks, and because patients with underlying medical conditions are at increased risk of more severe illness,” Illinois Public Health Director Nirav Shah told CNN.

At the northern California prison, one inmate has been taken to a hospital for treatment; the other five who have been diagnosed with Legionnaires’ are being treated in house. Meanwhile, other ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member? Login Here

Related Topics

Meet the Author

  • Jef (an unusual nickname for Jennifer) got her master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses. After four years of diving off the Gulf Coast of Tampa and performing behavioral experiments at the Tennessee Aquarium in Chattanooga, she left research to pursue a career in science writing. As The Scientist's managing editor, Jef edited features and oversaw the production of the TS Digest and quarterly print magazine. In 2022, her feature on uterus transplantation earned first place in the trade category of the Awards for Excellence in Health Care Journalism. She is a member of the National Association of Science Writers.

    View Full Profile
Share
February 2026

A Stubborn Gene, a Failed Experiment, and a New Path

When experiments refuse to cooperate, you try again and again. For Rafael Najmanovich, the setbacks ultimately pushed him in a new direction.

View this Issue
Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Beckman Coulter Logo
Conceptual multicolored vector image of cancer research, depicting various biomedical approaches to cancer therapy

Maximizing Cancer Research Model Systems

bioxcell

Products

Sino Biological Logo

Sino Biological Pioneers Life Sciences Innovation with High-Quality Bioreagents on Inside Business Today with Bill and Guiliana Rancic

Sino Biological Logo

Sino Biological Expands Research Reagent Portfolio to Support Global Nipah Virus Vaccine and Diagnostic Development

Beckman Coulter

Beckman Coulter Life Sciences Partners with Automata to Accelerate AI-Ready Laboratory Automation

Refeyn logo

Refeyn named in the Sunday Times 100 Tech list of the UK’s fastest-growing technology companies