Rickettsia spp. in Dermacentor marginatus ticks: analysis of the host-vector-pathogen interactions in a northern Mediterranean area

Experimental & Applied Acarology
Marco SelmiEnrica Ricci

Abstract

In this work, we have analyzed the key features of Rickettsia spp. maintenance in Dermacentor marginatus ticks in four regions of the northern Mediterranean area, where extensive investigations are currently lacking. For this purpose, 380 adult D. marginatus ticks were collected from vegetation and wild ungulates during a 3-year study. A host-vector-pathogen interaction approach was applied to investigate the key components of the disease systems and evaluate their respective weight in the intensity of infection in natural foci. A high variability in the R. slovaca infection rate among sampling sites was observed, whereas R. raoultii was sporadically present and at low infection rates. Dermacentor marginatus presence was confirmed in all the investigated regions. The local wild boar population showed a strong association with adult D. marginatus ticks. The results of this investigation suggest that wild boars not only maintain D. marginatus populations by feeding adult ticks, but may also have a potential role in the eco-epidemiology of rickettsioses, as carriers of rickettsiae-infected ticks. The public health implications of these results are discussed.

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Citations

Oct 28, 2019·Experimental & Applied Acarology·Susana RemesarPatrocinio Morrondo
Sep 29, 2020·Transboundary and Emerging Diseases·Giovanni SgroiDomenico Otranto
Feb 12, 2021·Pathogens·Cristoforo GuccioneAntonio Cascio
Nov 4, 2020·International Journal of Environmental Research and Public Health·Emma L GillinghamKayleigh Hansford
Sep 7, 2021·Transboundary and Emerging Diseases·Giovanni SgroiDomenico Otranto

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Datasets Mentioned

BETA
DQ821852
KR559552

Methods Mentioned

BETA
PCR
nucleic acid extraction

Software Mentioned

Biosystems Sequencing Analysis
R Development Core Team
R
Applied
BLAST

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