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Complete Health Indicator Report of Legionellosis Incidence Rate in New Jersey

Definition

Legionellosis refers to confirmed reported cases of legionellosis in New Jersey (both Pontiac Fever and Legionnaire's Disease). Incidence: Rate of reported legionellosis infections per 100,000 people

Numerator

Confirmed reported legionellosis cases in New Jersey

Denominator

Population of New Jersey (annual)

Why Is This Important?

Legionellosis refers to infections caused by Legionella species of bacteria. It includes both Legionnaire's Disease, a severe form of pneumonia, and Pontiac Fever, a flu-like illness that is usually self limiting. Legionella is a naturally occurring bacteria commonly found in warm water sources such as large plumbing systems, hot water tanks, cooling towers, hot tubs, respiratory equipment, and decorative fountains. Disease transmission is not person-to-person. Instead, a person must breath in water droplets, mist, or vapor contaminated with the bacteria to become infected. Those at greatest risk of developing legionellosis are elderly persons, current and former smokers, persons with chronic lung diseases, and immunocompromised persons. Legionellosis has been a reportable disease in New Jersey since 2003.

How Do We Compare With the U.S.?

While the incidence rate of legionellosis is increasing in both the United States and New Jersey, the annual rates have been higher in New Jersey for many years. CDC data show that the rate of legionellosis in the U.S. was 1.89 cases per 100,000 people in 2015. For the same year, the rate in New Jersey was 2.4 cases per 100,000 people. In 2018 the rate in New Jersey had increased to 4.1 cases per 100,000 people.

Health Program Information

The NJ Department of Health has both general and technical information available online for Legionellosis at [https://www.state.nj.us/health/cd/legion/index.shtml]. A Legionellosis fact sheet with frequently asked questions is at [https://www.state.nj.us/health/cd/documents/faq/legionellosis_faq.pdf].

Data Tables


Annual Incidence Rate of Legionellosis, by Year, 2006-2018

YearCrude Rate of Legionellosis per 100,000 PersonsNumer- ator
Record Count: 13
20061.4120
20071.3116
20081.7150
20092.5218
20101.7151
20112.7235
20122.0173
20132.7241
20142.2199
20152.4214
20162.2199
20172.8249
20184.1369

Data Sources

  • Communicable Disease Reporting and Surveillance System, Communicable Disease Service, New Jersey Department of Health, [http://www.nj.gov/health/cd/reporting/cdrss/]
  • U.S. Census Bureau


Annual Crude Incidence Rate of Legionellosis, by County, 2014-2018

CountyCrude Rate of Legionellosis per 100,000 PersonsNumer- ator
Record Count: 22
Atlantic5.169
Bergen2.092
Burlington2.146
Camden2.870
Cape May3.215
Cumberland2.519
Essex6.2246
Gloucester3.348
Hudson2.273
Hunterdon2.918
Mercer2.241
Middlesex2.4101
Monmouth1.754
Morris2.870
Ocean2.161
Passaic2.152
Salem2.58
Somerset1.321
Sussex2.216
Union3.185
Warren4.725
New Jersey2.81,230

Data Source

Communicable Disease Reporting and Surveillance System, Communicable Disease Service, New Jersey Department of Health, [http://www.nj.gov/health/cd/reporting/cdrss/]

Page Content Updated On 04/16/2020, Published on 06/21/2021
The information provided above is from the Department of Health's NJSHAD web site (https://nj.gov/health/shad). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Sat, 04 February 2023 22:37:31 from Department of Health, New Jersey State Health Assessment Data Web site: https://nj.gov/health/shad ".

Content updated: no date