Tick Dispersal and Borrelia Species in Ticks from Migratory Birds: Insights from the Asinara National Park, Sardinia, Italy

Microbiology Research, Journal Year: 2025, Volume and Issue: 16(5), P. 88 - 88

Published: April 23, 2025

Rapid environmental changes driven by human activities are contributing to a significant decline in global biodiversity, with avian species being particularly affected due their migratory behavior. As highly mobile hosts, birds facilitate the geographic dispersal of ectoparasites, including ticks, which serve as vectors for numerous zoonotic pathogens. This study, conducted collaboration Faunistic Observatory Asinara National Park between 2021 and 2023, aimed investigate potential role tick presence Borrelia spp. DNA. Birds were captured using mist nets during pre-breeding (April–May) post-breeding (October–November) migration periods. Ticks systematically collected identified at level, molecular analyses performed real-time conventional PCR detect Results showed distinct seasonal variation composition. In autumn, Ixodes ricinus was predominant (99%), whereas Hyalomma more frequently observed spring (78%). Molecular screening revealed DNA 26.1% garinii most prevalent species. These findings underscore ecological significance dissemination ticks tick-borne pathogens, highlighting shaping disease transmission dynamics across different regions. study provides valuable insights into fluctuations populations associated avifauna epidemiological risks posed these interactions. Continued surveillance pathogens is essential informing public health strategies mitigating emerging infectious diseases, but further investigation needed clarify actual

Language: Английский

Transmission risk of vector-borne bacterial diseases (Anaplasma spp. and Ehrlichia canis) in Spain and Portugal

BMC Veterinary Research, Journal Year: 2024, Volume and Issue: 20(1)

Published: Nov. 26, 2024

Ehrlichiosis and anaplasmosis are vector-borne bacterial diseases produced by intracellular rickettsial species of the genus Ehrlichia Anaplasma. canis Anaplasma spp. (A. platys A. phagocytophilum) have reported cases zoonotic transmision main agents canine ehrlichiosis anaplasmosis. They normally present an asymptomatic or mild course in domestic wild animals with some lethal reported. The vector these Europe castor bean tick (Ixodes ricinus) brown dog (Rhipicephalus sanguineus), although only latter, host is dogs. aim this work to apply integrative approach convert ecological niche models (ENMs) into potential transmission risk understand relative contribution two vectors (R. sanguineus I. spread both Iberian Peninsula Balearic Islands. Two ENMs meeting all criteria were successfully generated for R. ricinus human footprint being most relevant explanatory variable. novelty study lies combination independent estimate disease specific bacteria (E. canis, phagocytophilum). Only maps that had higher than showed positive significant correlations between seroprevalence either (R ≥ 0.4; p < 0.05). Regarding spp., map having 10% (10I) 90% (90R) inferred 47.4% infected dogs very high-risk areas. In case E. model showing a proportion 25I-75R better validation power (53.4% areas). used good approximation Rhipicephalus appears as transmitter area (90% 75% respectively), accordance its abundance preference. This may help veterinary staff, clinicians owners optimize control certain vulnerable areas, thus reduce infection

Language: Английский