Lyme Science Blog

In a recently published paper, Nykytyuk and colleagues describe the case of a 13-year-old boy with Lyme arthritis, a common manifestation of Lyme disease, who developed a Herxheimer reaction when treated with doxycycline. [1] “A 13-year-old boy was admitted to the regional hospital with complaints of left knee swelling, hip, ankle and cervical spine pain,” […]

The 40-year-old woman, who developed redness, swelling, pain, and a rash at the excision site, was treated with cephalexin and later switched to trimethoprim/sulfamethoxazole (TMP/SMX).  This case describes a case where Lyme disease mimics cellulitis. “Over the next 24 hours, there was a rapid expansion of abdominal redness and patchy areas of redness on her

There are several published papers that address the question: Can you have Lyme disease and not know it?  Logigian and colleagues described chronic neurologic Lyme disease patients who were ill for up to 14 years prior to being diagnosed. Their symptoms included fatigue, poor memory, a sleep disturbance, headaches, lightheadedness, and joint pain.1  Fallon and

Overall, the number of individuals contracting Babesia is rising. The annual number of cases per year climbed from 4 per 100,000 to 9 per 100,000 in the U.S. between 2006 and 2017. The annual number of cases of Babesia per year for individuals over the age of 85 was 4 out of 100,000. In comparison,

Powassan virus in children is not often reported. In this article, the authors describe powassan virus in children involving two infants with tick bites who developed Powassan virus encephalitis. As the authors point out, their case report not only demonstrates that rapid transmission of POWV can occur, but it highlights the importance for parents/caregivers to

Individuals who suffer from persistent symptoms may be diagnosed with a post-treatment lyme disease syndrome or ‘chronic Lyme disease.’  Studies estimate that between 34% and 62% of patients continue to have ongoing, chronic symptoms even after standard antibiotic therapy. Many remain ill for months to years. In fact, according to one study, 34% of a

Borrelia miyamotoi (BM) is another tick-borne pathogen and “unlike Lyme disease, erythema migrans rash, and arthralgias are uncommon,” the authors write in the journal Frontiers in Medicine. The infection is diagnosed with polymerase chain reaction (PCR) called glycerophosphodiester phosphodiesterase (GlpQ) enzyme immunoassay. Investigators looked at the incidence of BM in 82 patients who were seeking a

The Infectious Disease Society of America (IDSA) and the International Lyme and Associated Diseases Society (ILADS) have each published their own set of evidence-based treatment guidelines. IDSA guidelines recommend a short course of antibiotics, typically 14 to 30 days. IDSA argues that the Borrelia burgdorferi bacteria does not persist in a patient beyond this timeframe

In the article, “Pathogens Manipulating Tick Behavior—Through a Glass, Darkly,” Benelli reviews the literature on tick behavior triggered by infections with Anaplasma, Borrelia, Babesia, Bartonella, Rickettsia, and tick-borne encephalitis virus (TBEV).¹ You might think a deer tick would be worse off if infected. But, not so. It appears that deer ticks are actually more likely

Today, ticks harbor multiple infectious pathogens that can be transmitted to humans through a tick bite or tainted blood transfusion. The Centers for Disease Control and Prevention (CDC) now reports that “a single tick can transmit multiple pathogens, including bacteria, viruses, and parasites.” [1] This can result in patients developing what is referred to as