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Health Indicator Report of Lyme Disease Incidence

Lyme disease is a disease that is spread by a tick bite. Symptoms of Lyme disease include chills, fever, a bulls eye rash, headache, and muscle pain. Lyme disease affects the central nervous system, heart, and joints in its advanced stages. Individuals can use preventative measures to avoid contracting Lyme disease including using insect repellent, checking for ticks often when walking outside, and wearing long, light colored clothing to better spot ticks on the body.


Source: 1998-2004, NJDOH Communicable Disease Service files; 2005-2015, NJDOH Communicable Disease Service CDRSS historic report.

Data Sources

  • Communicable Disease Service, New Jersey Department of Health
  • Population Estimates, State Data Center, New Jersey Department of Labor and Workforce Development, []


Incidence (new cases) of Lyme disease per 100,000 population


Number of confirmed cases of Lyme disease reported to the New Jersey Department of Health in a given year


Total number of persons in the population in that same year

How Are We Doing?

The incidence of Lyme disease increased from 23.5 cases per 100,000 population in 1998 to 70.0 in 2008. Incidence then declined to 36.8 in 2014, but in 2015, the incidence rate increased to 54.2 cases per 100,000 population. The incidence rate remains far above the Healthy New Jersey 2010 target of 6.5 cases per 100,000 population. Note that the case count before 2008 includes cases that meet the CDC case definition for confirmed Lyme disease. The CDC Lyme disease case definition was modified in 2008 and 2011. The case count for 2008 includes confirmed, probable and possible cases; confirmed and probable cases after 2009. The case counts were updated on 6/29/2016 based on the CDC case definition.

How Do We Compare With the U.S.?

In 2014, 96% of Lyme disease cases were reported from 14 states: Connecticut, Delaware, Maine, Maryland, Massachusetts, Rhode Island, Minnesota, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, Virginia, and Wisconsin. Lyme disease is the most commonly reported vectorborne illness in the United States, however this disease does not occur nationwide and is concentrated heavily in the Northeast and upper Midwest. [1]

What Is Being Done?

The NJDOH Communicable Disease Service (CDS) performs surveillance for newly diagnosed cases of Lyme disease to monitor trends and identify risk factors, and both the CDS and local health departments offer educational information about the spread, symptoms, diagnosis, treatment, and prevention of Lyme disease as well as what to do if a tick is found on one's body. [] CDS also distributes a Tick-Borne Diseases Brochure: []
Page Content Updated On 10/24/2017, Published on 10/25/2017
The information provided above is from the Department of Health's NJSHAD web site ( The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Tue, 20 March 2018 23:05:59 from Department of Health, New Jersey State Health Assessment Data Web site: ".

Content updated: Wed, 28 Feb 2018 05:01:06 EST