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Lyme disease prevalence increasing, now present in new U.S. States

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Staff Writer | July 31, 2018
The prevalence of Lyme disease is increasing in the United States, spiking significantly between 2016 and 2017, and has spread to all 50 United States and the District of Columbia, according to Quest Diagnostics.
Lyme disease
America   Lyme disease remains most prevalent in the Northeastern United States
Based on more than six million de-identified laboratory test results conducted over the past seven years, the Quest Diagnostics study also found that outside of the northeastern U.S. which is historically associated with Lyme disease, California and Florida saw the largest absolute increases in positive test results.

California found 483 infected patients in 2017, a 194.5 percent increase over 2015 levels. Florida found 501 infected patients in 2017, a 77 percent increase over 2015 levels.

Lyme disease remains most prevalent in the Northeastern United States Combined, Pennsylvania and the six New England states (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont) accounted for 60.6 percent of the total number of positive Lyme disease test results found in the United States in 2017.

Pennsylvania tops the nation in Lyme disease cases. With 10,001 cases in 2017, Pennsylvania saw the most positive Lyme disease test results of any state in the nation, and nearly as many found in all New England states combined (11,549).

Notable increases also observed in other states between 2015 and 2017 including Georgia, Arizona, Ohio, Texas, Tennessee, and Virginia.

Spread by tick bites from infected blacklegged and deer ticks, Lyme disease is an infection by the bacterium Borrelia burgdorferi that causes more than 300,000 illnesses each year in the United States, according to the Centers for Disease Control and Prevention (CDC).

It is the most commonly occurring vector-borne disease and the sixth most commonly reported notifiable infectious disease.

Common signs of potential Lyme exposure include the tell-tale "bullseye" shaped mark that frequently forms on the skin at a tick-bite location, or a presence of flu-like and/or other symptoms associated with Lyme or tick-borne infections.


 

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