Detection of tick-borne pathogens in ticks collected in the suburban area of Monte Romano, Lazio Region, Central Italy

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Abstract

Background. A study on tick species characterization and tick borne pathogens detection was performed within a survey conducted during 2012 and 2013 in the Viterbo province (Lazio Region, Central Italy). Seven sites were selected for the study investigation, including two farms and a military zone.

Methods. A total of 255 ticks, Rhipicephalus (Boophilus) annulatus (n =215), Rhipicephalus bursa (n = 28), and Hyalomma marginatum (n = 12) were screened individually by molecular methods for the tick borne bacterial agents: Borrelia burgdorferi sensu lato group, Bartonella spp., Coxiella burnetii, Ehrlichia spp., Francisella spp., and Rickettsia spp.

Results and Conclusion. Overall, 182 ticks (71%) were infected with one pathogen but co-infections were also found. Tick borne pathogens identified were C. burnetii, B. burgdorferi s.l.., Bartonella spp., Rickettsia spp., Francisella spp., and Ehrlichia spp. In R. bursa and H. marginatum, the presence of B. burgdorferi s.l. was positively correlated with that of C. burnetii, Rickettsia spp., and Bartonella spp. and their coinfection probabilities were 29.8%, 22.7% and 11.7%, respectively. The Probability of coinfection for Francisella spp. and Rickettsia spp. and for Francisella spp. and Bartonella spp. was 14.9% and 17.9%, respectively. In R. (Boophilus) annulatus, the probability of coinfection between C. burnetii and B. burgdorferi s.l. was 11.3%, while those between C. burnetii and Bartonella and between B. burgdorferi s.l. and Bartonella were 0.8%. Further studies are needed in order to assess the risk associated with these tick-borne pathogens, somewhat unusual in Central Italy.

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Fabiola Mancini - Superiore di Sanità dip DMI, Rome, Italy

Maria Fenicia Vescio - Superiore di Sanità dip DMI, Rome, Italy

Luciano Toma - Superiore di Sanità dip DMI, Rome, Italy

Marco di Luca - Superiore di Sanità dip DMI, Rome, Italy

Francesco Severini - Superiore di Sanità dip DMI, Rome, Italy

Simone Mario Cacciò - Superiore di Sanità dip DMI, Rome, Italy

Carmela Mariano - Dipartimento di Prevenzione, Azienda Sanitaria Locale di Viterbo, Viterbo, Italy.

Giancarlo Nicolai - Dipartimento di Prevenzione, Azienda Sanitaria Locale di Viterbo, Viterbo, Italy.

Valentina Laghezza Masci - Dipartimento per l’Innovazione nei sistemi Biologici, Agroalimentari e Forestali, Università della Tuscia di Viterbo, Viterbo, Italy.

Anna Maria Fausto - Dipartimento per l’Innovazione nei sistemi Biologici, Agroalimentari e Forestali, Università della Tuscia di Viterbo, Viterbo, Italy.

Patrizio Pezzotti - Superiore di Sanità dip DMI, Rome, Italy

Alessandra Ciervo - Superiore di Sanità dip DMI, Rome, Italy

How to Cite
Mancini, F., Vescio, M. F., Toma, L., di Luca, M., Severini, F., Cacciò, S. M., Mariano, C., Nicolai, G., Laghezza Masci, V., Fausto, A. M., Pezzotti, P., & Ciervo, A. (2019). Detection of tick-borne pathogens in ticks collected in the suburban area of Monte Romano, Lazio Region, Central Italy. Annali dell’Istituto Superiore Di Sanità, 55(2), 143-150. Retrieved from https://annali.iss.it/index.php/anna/article/view/776
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