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          Female doctor standing with mother and daughter.

          Nearly one in three children who are tested for peanut allergies using a well-established and widely used blood test may be allergic to peanuts, according to the latest Quest Diagnostics Health Trends study to examine diagnostic insights into allergy trends in America.

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          Cardiovascular Health

          Happy couple

          A new peer-reviewed Quest Diagnostics Health Trends™ study finds that decades of declines in LDL cholesterol blood levels, a key marker of death risk from heart disease, abruptly ended in 2008, and may have stalled since.

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          Drug Testing Index™

          Drug testing Testing report data

          Workforce drug testing positivity climbs to highest rate since 2004, According to New Quest Diagnostics analysis. See our interactive map with positivity rates and trend lines by three-digit zip code in the U.S. 

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          Lyme Disease

          Map Stats Feature

          Lyme disease is an infection spread by the bite of ticks that causes more than 300,000 illnesses each year in the United States, according to the Centers for Disease Control and Prevention. It is the most commonly occurring vector-borne disease and the sixth most commonly reported notifiable infectious disease. A Quest Diagnostics Health Trends study shows Lyme disease surging in states where it has been less prominent than in the past.

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          More Health Trends Quest Diagnostics Health Trends™ reports also include studies of gestational diabetes, diabetes, H1N1 Influenza, kidney disease, cardiovascular health and rotavirus infection.


          Centers for Disease Control and Prevention. Lyme Disease. Lyme disease graphs: reported cases of Lyme disease by year, United States, 1996-2016. https://www.cdc.gov/lyme/stats/graphs.html. Accessed June 28, 2018.