The prevalence of Borrelia burgdorferi sensu lato (s.l.), the etiologic agent of Lyme borrelosis (LB), was determined for the first time in Egypt by using polymerase chain reaction (PCR). Questing 5243 hard and soft ticks were collected from animal farms throughout Giza Governorate. DNA from 500 individual tick species was extracted and PCR was performed. Primers verified from the sequence of German strain Pko of Borrelia afzelii were used. Fragments of 642 bp were generated and sequenced. The prevalence of B. burgdorferi sensu lato (s.l.) was 28% of examined soft and hard ticks. High infection rate (66%) of B. burgdorferi s.l. was observed in both nymph and adult soft ticks Ornithodoros savignyi. Beside, the role of hard ticks as potential vectors of Lyme disease in Egypt, where the infection rate was between 0.0-50.0%. Sequence analysis of PCR product of Borrelia burgdorferi sensu lato shares high degree of similarity in sequence compared to similar species in GenBank.
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Acta Trop
March 2025
Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Sede Territoriale di, Pavia, Italia. Electronic address:
The rising prevalence and transmission of tick-borne pathogens (TBPs) represent a significant public health issue all over the world, including in Italy. The region of Lombardy, in Northern Italy, is particularly endemic for TBPs. While evidence indicates a high exposure risk to infected ticks, there is a lack of data on ticks collected from humans.
View Article and Find Full Text PDFPathogens
January 2025
Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Jordana 19, 41-808 Zabrze, Poland.
Throughout Europe, including Poland, ticks are the main vector of numerous pathogenic agents that pose a serious threat to public health. Southern Poland attracts many tourists with its scenic landscapes and abundant recreational opportunities. These areas are ideal habitats for wild fauna, which serve as the main reservoirs and hosts for these pathogens and ticks.
View Article and Find Full Text PDFParasit Vectors
February 2025
Department of Veterinary Pathobiology, College of Veterinary Medicine and Biological Sciences, Texas A&M University, College Station, TX, 77843, USA.
Background: Canine vector-borne diseases (CVBDs) are illnesses caused by pathogens transmitted by blood-feeding arthropods such as ticks and mosquitoes. Many CVBDs, including dirofilariosis, anaplasmosis, and ehrlichiosis, are globally distributed and may cause a variety of clinical signs in dogs. Several CVBD agents are zoonotic, making epidemiological surveillance a joint veterinary and public health effort.
View Article and Find Full Text PDFFront Microbiol
February 2025
Tumor Vaccines and Biotechnology Branch, Division of Cellular Therapy 2, Office of Cellular Therapy and Human Tissue, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, United States.
Tick-borne diseases are a growing public health concern in the United States, with cases rising steadily each year. Lyme borreliosis, or Lyme disease, remains the most prevalent, affecting approximately 476,000 individuals annually. Human-driven changes in climate and ecosystems have expanded the habitat of pathogen-carrying ticks, facilitating the spread of these infections.
View Article and Find Full Text PDFbioRxiv
January 2025
Massachusetts General Hospital, Harvard Medical School.
Background: In the United States, () is the principal etiologic agent of Lyme disease. The complex structure of genomes has posed challenges for genomic studies because homology among the bacterium's many plasmids, which account for ~40% of the genome by length, has made them difficult to sequence and assemble.
Results: We used long-read sequencing to generate near-complete assemblies of 62 isolates of human-derived and collected public genomes with plasmid sequences.
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