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Lyme Science Blog

operating room

Lyme Endocarditis Causing Mitral Valve Disease

Lyme Endocarditis Causing Mitral Valve Disease in a 68-Year-Old Man In March 2017, a 68-year-old man was admitted to the Mayo Clinic in Rochester, Minnesota, with symptoms suggestive of advanced heart failure. “He had a chronic cough and progressive dyspnea, which were consistent with New York Heart Association class IV symptoms of heart failure,” writes […]

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Erythema Migrans Rash: Why Lyme Disease Is Missed Without It

Erythema Migrans Rash: Why Overreliance Can Harm Lyme Disease Diagnosis Two studies published in 1996 and 1998 required participants to meet the Centers for Disease Control and Prevention (CDC) surveillance case definition for Lyme disease. Under this definition, an erythema migrans (EM) rash must be at least 2 inches in diameter to qualify. How Common

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Mexico, flag

A case of Lyme carditis in Mexico

Lyme Carditis Presenting as Complete Heart Block in a Young Woman From Mexico A previously healthy woman presented to the emergency department with sudden-onset dyspnea and chest pain. Four days prior to admission, she experienced a syncopal episode. Electrocardiogram (EKG) findings revealed a third-degree atrioventricular (AV) heart block. The patient, a resident of Nuevo León,

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elderly

Elderly Lyme disease patients more likely to have unfavorable treatment outcome

The authors reviewed the records of 1,220 young, middle-aged and elderly patients, comparing disease course and long-term outcomes for each group. The patients had been treated at an outpatient clinic at the University Medical Center Ljubljana in Slovenia. The study included 224 elderly patients, with 173 between 65-74 years old, 48 between 75-84 years old

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Lyme disease prevention methods

Are Lyme Disease Prevention Methods Really Working?

Do standard Lyme disease prevention methods actually work? Most public health guidelines recommend tick checks, repellents, and protective clothing—but how strong is the evidence behind these recommendations? A systematic review reveals the research is surprisingly thin. What the research says about personal protective measures In the article “Interventions to prevent Lyme disease in humans: A

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lab, microscope, testing

Lyme disease no longer fits the ‘one microbe, one disease Germ Theory’

But with the emergence of different species of spirochetes and tick-borne co-infections, the one microbe, one disease Germ Theory has fallen apart. The growing number of concurrent tick-borne infections, such as Lyme disease and Babesia, demonstrates the involvement and concern of multiple microbes. One study found that an infection with both Lyme disease and Babesia

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Canada, flag

Causes for under-detection of Lyme disease in Canada

The authors estimate that the number of Lyme disease cases in Canada that go undetected is greater than the 10-fold difference in the U.S. For example, “Calculation of expected human Lyme disease cases based on tick and canine infections in New Brunswick indicates a minimum of 12.1 to 58.2-fold underestimation (1.7% to 8.3% cases detected).”

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Over 20% of Lyme disease patients remain ill after treatment

“Clinically, PTLDS is largely a diagnosis of exclusion, requiring documentation of prior Lyme disease, appropriate treatment, and onset of unexplained, subjective symptoms within six months after a Lyme disease diagnosis that persist for at least six months after completion of antibiotic treatment,” writes Moon from Johns Hopkins Bloomberg School of Public Health. [4] Many patients

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pills, medicine

Study finds misdiagnosis and delayed diagnosis common for Lyme disease patients

A study published in Healthcare (Basel) by Johnson and colleagues [1] summarizes information provided by 3,903 individuals registered with MyLymeData. The findings reveal how persistent Lyme disease misconceptions contribute to diagnostic delays and patient suffering. The participants reported a delay in diagnosis. “More than half (51%) reported that it took them more than three years

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