A 70-year-old man presented to the emergency department with fevers, ankle edema and nausea following a presumed insect bite on his ankle 1 month prior. On examination, he was febrile and had left leg pain with passive range of motion. Laboratory studies revealed anemia, thrombocytopenia, acute kidney injury and elevated aminotransaminases. Due to his recent travel to the Northeastern United States, he was suspected of having a possible tick-borne illness. Serologies were positive for , and , and the patient was diagnosed with Lyme disease, babesiosis and anaplasmosis. He was treated with doxycyline, atovaquone and azithromycin, leading to resolution of symptoms. While co-infection with Lyme disease is common, infection with three tickborne illnesses at one time is relatively rare.
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http://dx.doi.org/10.1136/bcr-2020-241004 | DOI Listing |
Ther Adv Neurol Disord
January 2025
Institute for Infectious Diseases, University of Bern, Bern, Switzerland.
Background: Serum neurofilament light chain (sNfL) is a biomarker for neuro-axonal injury.
Objectives: To assess sNfL's utility as a diagnostic marker for Lyme neuroborreliosis (LNB).
Methods: We compared serum and CSF NfL levels in LNB patients and age-matched controls.
Sci Rep
January 2025
Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, Olsztyn, 10-719, Poland.
Multicellular animals need to control the spread of invading pathogens. This is a particular challenge for blood-feeding vectors such as ticks, which ingest large amounts of blood potentially laden with harmful microorganisms. Ticks have a basic innate immune system and protect themselves from infection through innate immune responses involving pathways such as Janus kinase (JAK) or the signalling transducer activator of transcription (STAT).
View Article and Find Full Text PDFBMC Biol
January 2025
Oniris, INRAE, BIOEPAR, 44300, Nantes, France.
Background: Ticks, hematophagous Acari, pose a significant threat by transmitting various pathogens to their vertebrate hosts during feeding. Despite advances in tick genomics, high-quality genomes were lacking until recently, particularly in the genus Ixodes, which includes the main vectors of Lyme disease.
Results: Here, we present the genome sequences of four tick species, derived from a single female individual, with a particular focus on the European species Ixodes ricinus, achieving a chromosome-level assembly.
Neurology
February 2025
Clinic of Neurology and Neurophysiology, Medical Center, Faculty of Medicine, University of Freiburg, Germany; and.
True seronegativity is extremely rare in Lyme neuroborreliosis (LNB) with reports only in patients with hematological malignancies or under treatment with chemotherapy and B-cell depleting therapies. In these instances, diagnosing LNB can be challenging. We report the case of a 63-year-old patient with 2 independent episodes of LNB.
View Article and Find Full Text PDFSci Rep
January 2025
Vibrant Sciences LLC., San Carlos, CA, USA.
Tick-borne infections are the most common vector-borne diseases in the USA. Ticks harbor and transmit several infections with Lyme disease being the most common tickborne infection in the US and Europe. Lack of awareness about tick populations, specific diagnostic tests, and overlapping signs and symptoms of tick-borne infections can often lead to misdiagnosis affecting treatment and the prevalence data reported especially for non-Lyme tick-borne infections.
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