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If you or a loved one have been affected by Legionnaires’ disease or has been exposed to Legionella bacteria, you may be entitled to compensation. Legionnaires’ disease is a severe form of pneumonia, which is an infection of one or both lungs. Protect your rights and make sure you obtain the justice that you deserve for your injuries by contacting our highly skilled team of Legionnaires’ disease lawyers at The Lange Law Firm, PLLC today.
Legionnaires’ claims require you to prove who was responsible for exposing you to Legionella. This requires a deep understanding of how to represent clients in cases involving water contamination. The Lange Law Firm is the place to turn in these complex cases because:
Legionnaires’ disease is preventable by thoroughly cleaning and disinfecting water sources, but a claim can only be successful if you have proof that shows you were harmed due to the other party’s negligence in not doing so.
Here is what you must be able to show evidence of in order to have a legionella claim:
Most cases related to Legionnaires’ disease are based either on negligence or breach of an express or implied warranty. If a defective product was the cause of the exposure, then a strict liability claim could be made against the product manufacturer, but this isn’t usually as common.
Negligence claims require you to prove that the defendant was unreasonably careless or violated a safety rule and that your exposure occurred because of it. Typically, you could demonstrate negligence by showing:
These are just some of many examples in which a defendant’s failures could result in exposure to contaminated water that leads to Legionnaires’ disease.
Breach of express or implied warranty, as well as strict liability claims, could be asserted if you were exposed to contaminated water due to a defective commercial product such as a humidifier or defective whirlpool sauna. You’d need to show that the product caused harm when used as intended, or that it was not safe for its intended purpose.
To pursue a claim for compensation, you will need to demonstrate both that you have suffered damages because of Legionnaires’ disease and also that the defendant caused you to get sick. Generally, the CDC recommends focusing on your locations during the 14 days before symptoms begin.
Here are some of the key steps you should take to both preserve your claim and to help protect the public health by identifying a source of contaminated water.
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A variety of different defendants could be held liable in a Legionnaires’ disease case. Some of the past defendants who have been held responsible include:
Some major cases in recent years include a lawsuit against a Las Vegas hotel, against contractors in New York City, and a claim against a Chicago medical center. But these are just a few of many. Any company or individual who allowed water contamination that resulted in the development of Legionnaires’ disease could be held responsible for their negligence.
In the U.S., the CDC monitors legionella outbreaks and offers access to selected data. While not a full accounting of cases of Legionnaires disease, it does give us a general idea of where the problem is greatest. From 2009 – 2023, the database contains 770 Legionella outbreaks that led to 3,927 illnesses, 2,406 hospitalizations, and 280 deaths.
Florida reported more than twice as many legionella outbreaks as the next closest state. However, more people fell ill or were killed in Illinois than in any other state.
| State | Outbreaks | Illnesses | Hospitalizations | Deaths |
| Florida | 157 | 465 | 347 | 41 |
| New York | 73 | 293 | 216 | 23 |
| Ohio | 68 | 352 | 252 | 36 |
| Illinois | 56 | 388 | 200 | 39 |
| Pennsylvania | 47 | 270 | 208 | 20 |
| Michigan | 41 | 273 | 210 | 24 |
| Georgia | 37 | 192 | 103 | 13 |
| Maryland | 32 | 114 | 89 | 9 |
| Wisconsin | 31 | 126 | 112 | 11 |
| South Carolina | 21 | 137 | 77 | 3 |
| Massachusetts | 20 | 54 | 44 | 1 |
| Colorado | 17 | 55 | 40 | 3 |
| Alabama | 13 | 108 | 49 | 10 |
| Louisiana | 13 | 47 | 31 | 4 |
| North Carolina | 13 | 134 | 35 | 5 |
| Virginia | 13 | 33 | 24 | 1 |
| Minnesota | 11 | 119 | 42 | 3 |
| Texas | 11 | 45 | 32 | 4 |
| California | 10 | 48 | 38 | 6 |
| Kansas | 9 | 33 | 10 | 0 |
| Nevada | 9 | 180 | 22 | 1 |
| Washington | 8 | 32 | 31 | 4 |
| Arizona | 6 | 14 | 9 | 2 |
| Kentucky | 6 | 27 | 11 | 1 |
| Tennessee | 5 | 161 | 57 | 1 |
| Utah | 5 | 16 | 13 | 2 |
| Connecticut | 4 | 11 | 3 | 1 |
| New Hampshire | 4 | 58 | 29 | 3 |
| Oregon | 4 | 25 | 13 | 2 |
| Hawaii | 3 | 6 | 6 | 0 |
| Missouri | 3 | 8 | 5 | 1 |
| Montana | 3 | 14 | 4 | 0 |
| North Dakota | 3 | 8 | 6 | 0 |
| Rhode Island | 3 | 7 | 5 | 4 |
| West Virginia | 3 | 16 | 11 | 1 |
| Mississippi | 2 | 13 | 10 | 2 |
| Idaho | 1 | 5 | 5 | 0 |
| Indiana | 1 | 6 | 5 | 0 |
| Iowa | 1 | 3 | 3 | 2 |
| Oklahoma | 1 | 26 | 1 | 0 |
| Wyoming | 1 | 3 | 3 | 0 |
When a setting was listed on a reported outbreak, hotels and hospitals were the most common setting for legionella outbreaks to occur.
$3.5 Million recovered on behalf of 9 people who were hospitalized with Legionnaires’ disease.
Symptoms tend to develop within two to 10 days after exposure to legionella bacteria. The following signs and symptoms is how Legionnaires’ disease typically begins:
Around the second or third day, other signs and symptoms may develop:
Legionnaires’ disease can be effectively treated with antibiotics, but it will develop into pneumonia for most who contract it and will require a hospital stay to fully recover.
Unfortunately, as the Cleveland Clinic explains, Legionnaires’ disease can also cause life-threatening complications including:
The disease is also fatal in around one in 10 people. And even those who recover fully may experience months of symptoms including fatigue, difficulty walking, problems with balance and coordination, and slurred speech.
These symptoms can have a serious impact on your ability to work and on your quality of life for months or years.
You could also experience Pontiac fever, which is a mild form of Legionnaires’ disease. The difference being that Pontiac fever doesn’t infect the lungs. Symptoms include a fever, chills, headache and muscle aches. They will last anywhere from two to five days.
$1.5 Million recovered on behalf of an 85 year old woman who was hospitalized with Legionnaire’s disease.
Below are a sampling of recent Legionnaires’ disease outbreaks and investigations from across the United States. Keep in mind that this is not an exhaustive list and not all investigations could determine the source of the outbreak. Recently, The Lange Law Firm has filed cases in Harlem and Upper East Side, New York regarding a Legionnaire’s outbreak.
| When | City or State | Location | Number Affected |
| July- August 2025 | Harlem, New York | Cooling Towers in Community | 114 Infected, 7 Deaths |
| August, 2025 | Dearborn (Allegria Village), Michigan | Retirement / continuing-care community — Legionella found in the building water system | At least 2 deaths among residents; facility water tested positive. |
| Aug–Sep 2025 | Marshalltown / Marshall County, Iowa | Under investigation (suspected environmental source, cooling towers under review). | 74 cases, 2 deaths |
| September, 2025 | Westchester County, New York | Under investigation (county water systems / cooling towers being reviewed). | 38 cases, 2 deaths |
| Feb-May 2025 | Las Vegas, Nevada | Legionella in a Hotel | 3 Cases |
| February, 2025 | Columbus, Ohio | Legionella in a Senior Living Community | 4 cases |
| January, 2025 | US Virgin Islands | Legionella in a Hotel | 2 Cases |
| October, 2024 | Orange County, California | Community cluster | 7 cases |
| October, 2024 | Chicago, Illinois | YWCA Water System | 2 Cases |
| Aug-Sept 2024 | Albany, New York | Assisted living facility | 20 cases, 4 deaths |
| Aug 2024 | Cassville, Missouri | Hotel | 3 cases |
| June, 2022 | Wake County, NC | Hotel | 3 hotel guests were diagnosed |
| June, 2022 | The Bronx, NY | Highbridge Neighborhood Cooling Towers | 30 confirmed Infected, 2 deaths |
| May, 2022 | Waikiki, HI | Resort in Waikiki | 5 Infected involving guests |
| March, 2022 | Palm Springs, CA | Unknown Source in Coachella Valley | 20 confirmed Infected, 2 deaths |
| January, 2022 | Missouri | Hospital | 4 Infected |
| December, 2021 | Indiana | Correctional Facility | 7 Infected, 1 death |
| October, 2021 | Troy Hills, New Jersey | Water System of a Local Hotel | 3 Infected |
| October, 2021 | Beaverton, OR | Local Apartment Complex Hot Tub | 6 Infected |
| October, 2021 | Long Island, NY | Undetermined | 10 Infected and 1 death |
| October, 2021 | Somers, CT | Prison | 2 Infected |
| October, 2021 | Merrimack Valley, MA | Restaurant | 2 Infected, 1 death |
| August, 2021 | Harlem, NY | Cooling Towers in a “cluster area” | 18 Infected |
| August, 2021 | North Carolina | Sports Camp Training room at a NC University | 84 Infected |
| August, 2021 | Bangor, Maine | Undetermined | 4 Infected |
| August, 2021 | Cruise Ship | Cruise Ship | 2 Infected |
| July, 2021 | Essex County, NJ | Outdoor Exposure | 8 Infected |
| July, 2021 | Across Rhode Island | Reopening of COVID Closure Buildings | 30 Infected, 1 death |
| July, 2021 | Chicago, IL | No common source, undetermined | 49 Infected, 2 Deaths |
| July, 2021 | Across Michigan | Combination of heavy rainfall, hot weather, and stagnant water in buildings reopened after the pandemic. | 107 Infected |
| July, 2021 | Albert Lea, MN | Hotel Pool and Hot Tub Area | 2 Infected |
| June, 2021 | Portland, OR | Senior Living Center | 2 Infected |
| April, 2021 | Macon, MO | Hotel | 2 Infected |
| April, 2021 | Indianapolis, IN | Sports and Fitness Facility | Several Infected |
| February, 2021 | Union City, New Jersey | Undetermined | 14 Infected, 1 Death |
| January, 2021 | Portland, OR | Senior Living Center | 9 Infected, 1 Death |
If you think you or a loved one has been contaminated by Legionella bacteria, then time is of the essence. Contact The Lange Law Firm, PLLC to speak with a Legionnaires’ disease lawyer who has a reputation for success in handling these types of cases. Call (833) 330-3663 or fill out our online contact form. We offer free, no obligation legal consultations to discuss your potential case.
Legionnaires’ Disease is a potentially fatal infectious disease caused by a type of bacterium called Legionella.
According to the Centers for Disease Control and Prevention (CDC), the bacteria is naturally found in lakes and streams. However, in warm, stagnant water environments, the bacteria can proliferate, multiplying and forming biofilms. These are slimy layers that prevent bacteria from disinfectants. This can become a serious health risk if the bacteria and biofilms spread through systems with inadequate water treatment including:
The CDC reports that home and car air-conditioning units are not at risk for Legionella growth because they do not use water as a source for cooling the air.
Legionella grows and multiplies in water that is not properly maintained and makes its way into people’s lungs by way of microscopic water droplets in the air. These droplets containing bacteria are inhaled; this can happen by a variety of sources. Courtesy of the Mayo Clinic, past disease outbreaks have been caused by the following:
Acquiring Legionnaires’ or Pontiac Fever from accidentally inhaling contaminated water while drinking it can happen, but is uncommon. Also, very rarely is the disease spread person to person.
The CDC reports that Legionnaires’ disease cases have been steadily rising since the year 2000. Summer and early fall is when the illness tends to be discovered, but it can occur any time throughout the year.
This task is easiest to complete when you are part of a major outbreak, because government health agencies and health officials will step in to conduct testing in order to put a stop to the mounting illnesses by discovering the source.
What do you do then if yours is an individual case such as after using a hot tub while in a vacation home? Symptoms do not begin until two to 10 days after you have inhaled the contaminated water, there are so many water sources that you will have come into contact with during that time so it’s difficult to know where to start.
Discovering the source of your infection is of the utmost importance to your case, as without that knowledge there is no party to name as a defendant for your claim.