Lyme Science Blog

Can pets harbor ticks, even in the winter? In their article, “An analysis of companion animal tick encounters as revealed by photograph-based crowdsourced data,” Kopsco and colleagues found, “The percentage of reports of ticks found on companion animals is more than doubled in the fall and winter seasons from what was reported in the spring and […]

Borrelia Mayonii: Atypical Lyme Disease in the Midwest Borrelia mayonii is a recently discovered species that causes Lyme disease with atypical features. Since the species was first identified 7 years ago, there have been only 7 reported cases of Lyme disease caused by Borrelia mayonii. In Open Forum Infectious Diseases Correspondence, McGowan and colleagues describe

Lyme disease causes cardiac complications The case involved a 46-year-old man with Lyme disease who presented to the clinic with cardiac complications, which initially manifest as palpitations. The patient lived in a Lyme endemic region and reported that one month earlier, he had a “pinching sensation in his right thigh with an associated macular erythematous

Bartonella Psychiatric Symptoms: Case Reports After 37 years treating Lyme disease, I’ve seen Bartonella psychiatric symptoms include agitation, panic disorder, and treatment-resistant depression. In their 2007 article, “Do Bartonella Infections Cause Agitation, Panic Disorder, and Treatment-Resistant Depression?” Schaller and colleagues describe three patients with acute psychiatric symptoms associated with Bartonella-like signs and symptoms. Each patient

Rocky Mountain Spotted Fever Diagnosis: Clinical Challenges Rocky Mountain spotted fever diagnosis can be challenging, especially with atypical presentations. Rocky Mountain spotted fever has primarily been reported in 5 states in the United States, according to the CDC. These include Missouri, Tennessee, Oklahoma, Arkansas, and North Carolina. However, RMSF has been documented in other states,

Rocky Mountain Spotted Fever Diagnosis: Clinical Challenges In their article “A Longitudinal Study of a Large Clinical Cohort of Patients with Lyme Disease and Tick-Borne Co-Infections Treated with Combination Antibiotics” Xi and colleagues looked at 140 individuals who tested positive for tick-borne infections (TBI) with 33% of those patients infected with multiple TBIs. The authors

Anaplasmosis and Lyme Disease: Cardiac Complications Anaplasmosis and Lyme disease co-infection can lead to serious cardiac complications. Over the last several years, there has been a three-fold increase in the number of anaplasmosis cases in the United States. The tick-borne illness can be transmitted through the bite of an infected blacklegged (deer) tick and causes

Acute Lyme disease causes complete heart block Acute Lyme carditis complete block can develop within just 2 weeks of tick exposure – much faster than the “several weeks to months” timeline doctors typically expect. A 21-year-old man was found unresponsive with complete heart block only 14 days after visiting an endemic area. His case challenges

Lyme neuroborreliosis mimics Guillain-Barré Syndrome In this case report, the authors describe a 33-year-old man with Lyme neuroborreliosis, who was initially diagnosed with Guillain-Barré Syndrome based on his clinical, radiographic and neurodiagnostic test results. Guillain-Barré Syndrome “can range from a very mild case with brief weakness to nearly devastating paralysis, leaving you unable to breathe

Borrelia burgdorferi causes prosthetic joint infection The 68-year-old woman presented to the orthopedic clinic with pain and swelling in her right knee, which had been ongoing for 2 weeks. Eight years earlier, she had a total knee replacement but lived pain free following the surgery. One month prior to her knee pain, the patient had