Background: Understanding and quantification of the risk of Lyme borreliosis after a tick bite can aid development of prevention strategies against Lyme borreliosis.
Methods: We used 3,525 single tick bite reports from three large prospective studies on the transmission risk of tick-borne pathogens to humans, with 50 reports of Lyme borreliosis during the follow-up period, among 1,973 reports with known outcome. A structural equation model was applied to estimate the risk of Lyme borreliosis after a tick bite, and quantify the influence of: developmental stage of the tick, detection of Borrelia burgdorferi s.l. DNA in the tick by PCR, tick engorgement, patient-estimated duration of tick attachment, and patient age.
Results: The overall risk of developing Lyme borreliosis after a tick bite was 2.6% (95%CI 1.4-5.1). The risk increased with: - Tick engorgement: 1.4% (95%CI 0.7%-2.3%) for low engorgement to 5.5% (95%CI 2.8%-9.2%) for substantially engorged ticks;- Rising patient-estimated tick attachment duration: 2.0% (95%CI 1.3%-2.8%) after <12 hours, to 5.2% (95%CI 3.0%-8.9%) after ≥4 days;- Detection of Borrelia burgdorferi s.l. DNA in ticks: 6.7% (95%CI 3.6%-13.5%), versus 1.4% (95%CI 0.7%-2.9%) when ticks tested negative.The highest observed risk of Lyme borreliosis was 14.4% (95%CI 6.8%-24.6%) after one tick bite of a substantially engorged tick that tested positive for Borrelia burgdorferi s.l. DNA, which corresponds to one new case of Lyme borreliosis per 7 (95%CI 4-15) of such tick bites.
Conclusions: An individual's risk of Lyme borreliosis after a tick bite can be predicted with tick engorgement, patient-estimated duration of tick attachment, and detection of Borrelia burgdorferi s.l. DNA in the tick.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5524385 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0181807 | PLOS |
Publication Analysis
Top Keywords
Similar Publications
Lyme disease periprosthetic joint infection.
BMJ Case Rep
January 2025
Orthopedic Surgery, Mayo Clinic Health System in Eau Claire, Eau Claire, Wisconsin, USA
Periprosthetic joint infection (PJI) is a devastating complication of total joint surgery. Surgical management of PJI has increased surgical risks and is costly to the healthcare system. This case study presents a unique clinical scenario involving a patient who was diagnosed with Lyme PJI at the total knee arthroplasty site after undergoing surgical management.
View Article and Find Full Text PDFPrevalence of Borrelia burgdorferi sensu lato infection in the Czech Republic.
Int J Med Microbiol
January 2025
Global Vaccines, and Anti-infectives Medical Affairs, Pfizer Inc., 1 Portland Street, Cambridge, MA 02139, USA. Electronic address:
Introduction: Lyme borreliosis (LB), an infection caused by Borrelia burgdorferi sensu lato (Bbsl), is the most common tick-borne disease in Europe. To further characterize the LB burden in the Czech Republic, we conducted a seroprevalence study and estimated the incidence of symptomatic Bbsl infections.
Methods: Anti-Bbsl IgM and IgG antibodies were detected in sera collected from the adult population in 2011 -2012 by enzyme-linked immunosorbent assay and immunoblot tests at the National Reference Laboratory.
CCL17 influences Borrelia burgdorferi infection in the heart.
J Infect Dis
January 2025
Section of Infectious Diseases, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT 06510, USA.
Lyme disease, caused by Borrelia burgdorferi, is transmitted to humans by Ixodes ticks. CCL17 is a potent chemokine that plays important roles in diverse illnesses, including autoimmune and infectious diseases. CCL17 knockout (KO) mice, infected with B.
View Article and Find Full Text PDFFlbB forms a distinctive ring essential for periplasmic flagellar assembly and motility in Borrelia burgdorferi.
PLoS Pathog
January 2025
Microbial Sciences Institute, Yale University, West Haven, Connecticut, United States of America.
Spirochetes are a widely existing group of bacteria with a distinct morphology. Some spirochetes are important human pathogens that utilize periplasmic flagella to achieve motility and host infection. The motors that drive the rotation of periplasmic flagella have a unique spirochete-specific feature, termed the collar, crucial for the flat-wave morphology and motility of the Lyme disease spirochete Borrelia burgdorferi.
View Article and Find Full Text PDFMCP5, a methyl-accepting chemotaxis protein regulated by both the Hk1-Rrp1 and Rrp2-RpoN-RpoS pathways, is required for the immune evasion of Borrelia burgdorferi.
PLoS Pathog
December 2024
Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America.
Borrelia (or Borreliella) burgdorferi, the causative agent of Lyme disease, is a motile and invasive zoonotic pathogen adept at navigating between its arthropod vector and mammalian host. While motility and chemotaxis are well known to be essential for its enzootic cycle, the role of each methyl-accepting chemotaxis proteins (MCPs) in the infectious cycle of B. burgdorferi remains unclear.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!