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A molecular epidemiological survey was conducted to identify the tick-borne disease agents Anaplasma phagocytophilum and Borrelia burgdorferi sensu lato in Selenge Province, Mongolia. The survey was in response to a suspected A. phagocytophilum infection in a patient. In 2012, a total of 129 questing Ixodes persulcatus adult ticks were sampled by flagging vegetation. A. phagocytophilum and Borrelia spp. were detected by PCR, targeting the 16S rDNA (rrs) and 5S-23S intergenic spacer region, respectively. Infection rates for A. phagocytophilum and B. burgdorferi sensu lato spp. were 6.2% and 55.0%, respectively. Six of the 129 ticks (4.9%) were coinfected with A. phagocytophilum and B. burgdorferi sensu lato. Among Borrelia spp., the highest prevalence rate was that for B. garinii 20047 type (26.3%), followed by B. afzelii (7.8%) and B. garinii NT29 type (7.0%). Furthermore, ticks were detected that were dually infected with B. afzelii and B. garinii 20047 type (7.8%) and B. garinii NT29 and 20047 types (6.2%).
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http://dx.doi.org/10.7883/yoken.67.47 | DOI Listing |
J Med Entomol
September 2025
Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, CO, USA.
The United States Centers for Disease Control and Prevention introduced the National Tick Surveillance Program in 2018 to better define areas of acarologic risk in response to the increasing burden of blacklegged tick (Ixodes scapularis, Acari: Ixodidae)-associated infections. The program coordinates surveillance efforts conducted by state and local public health programs and collates acarological data in the ArboNET Tick Module national database. Among the metrics collected, the density of infected host-seeking nymphs (DIN) is believed to be most closely correlated with the reported occurrence of tick-borne diseases.
View Article and Find Full Text PDFInfect Immun
September 2025
Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington, USA.
Ticks are obligate hematophagous parasites and pathogen vectors responsible for morbidity and mortality worldwide. is a vector for at least seven pathogens relevant to human and animal health, including the Lyme disease microbe, , and the causative agent of anaplasmosis, . Tick-host interactions affect the maintenance of tick-borne pathogens in a population.
View Article and Find Full Text PDFTicks Tick Borne Dis
August 2025
Medical Entomology and Zoonoses Ecology, UK Health Security Agency, Porton Down, Salisbury, UK. Electronic address:
Large ungulate grazers can manage habitats via conservation grazing, a practice using livestock to control vegetation growth, which has many ecological benefits but has the potential to provide additional hosts for ticks and consequently have an impact on tick-borne disease risk. Cattle and sheep are suspected to be transmission hosts for several tick-transmitted pathogens, so the presence of livestock could increase disease hazard. However, some ungulate species do not transmit other pathogens such as Borrelia burgdorferi sensu lato (s.
View Article and Find Full Text PDFJ Vet Intern Med
August 2025
BluePearl Pet Hospital, Golden Valley, Minnesota, USA.
A 4-year-old spayed female Golden Retriever was examined for hindlimb lameness, lethargy, poor appetite, and pyrexia 3 weeks after the removal of numerous ticks. Complete blood count revealed moderate thrombocytopenia and mild lymphopenia. A SNAP 4Dx test was negative for Borrelia burgdorferi, Ehrlichia spp.
View Article and Find Full Text PDFSensors (Basel)
August 2025
Department of Medical Informatics and Artificial Intelligence, Faculty of Biomedical Engineering, Silesian University of Technology, Roosevelta 40, 41-800 Zabrze, Poland.
This article presents a deep learning approach for classifying the developmental stages (larvae, nymphs, adult females, and adult males) of ticks, the most common tick species in Europe and a major vector of tick-borne pathogens, including , , and tick-borne encephalitis virus (TBEV). Each developmental stage plays a different role in disease transmission, with nymphs considered the most epidemiologically relevant stage due to their small size and high prevalence. We developed a convolutional neural network (CNN) model trained on a dataset of microscopic tick images collected in the area of Upper Silesia, Poland.
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