Annali dell'Istituto superiore di sanita · 2017
Molecular characterization of Babesia and Theileria species in ticks collected in the outskirt of Monte Romano, Lazio Region, Central Italy.
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Toma Luciano, Di Luca Marco, Mancini Fabiola, Severini Francesco, Mariano Carmela, Nicolai Giancarlo, Laghezza Masci Valentina, Ciervo Alessandra, Fausto Anna Maria, Cacciò Simone Mario
Аннотация
BACKGROUND: In 2012-2013, an investigation was carried out in the Viterbo province, Lazio region, on ticks and tick-borne Apicomplexan protozoa of the Babesia and Theileria genera. This followed the reporting of high density of ticks by soldiers operating in a military shooting range, and the signaling by owners and local veterinary authorities of several cases of babesiosis among cattle.
METHODS: A total of 422 ticks were collected from 35 heads, whereas 96 ticks were collected by dragging. Ticks were identified as Rhipicephalus (Boophilus) annulatus Say (n = 373), Rhipicephalus bursa Canestrini & Fanzago (n = 63), Rhipicephalus sanguineus/turanicus (n = 32), Hyalomma marginatum Koch (n = 49) and Dermacentor marginatus Sulzer, 1776 (n = 1). A randomly selected sample of ticks (235 from animals and 36 by dragging) was analyzed using molecular methods to detect species of Babesia and Theileria.
RESULTS: In total, 11 ticks collected from animals (4.7%) and two ticks (5.5%) collected by dragging were positive. Sequencing of PCR products of the small subunit ribosomal RNA gene revealed Babesia caballi (n = 2), Babesia bigemina (n = 3), Theileria sergenti/buffeli/orientalis (n = 7) and Theileria equi (n = 1). None of the detected species has been associated with human infection.
METHODS: A total of 422 ticks were collected from 35 heads, whereas 96 ticks were collected by dragging. Ticks were identified as Rhipicephalus (Boophilus) annulatus Say (n = 373), Rhipicephalus bursa Canestrini & Fanzago (n = 63), Rhipicephalus sanguineus/turanicus (n = 32), Hyalomma marginatum Koch (n = 49) and Dermacentor marginatus Sulzer, 1776 (n = 1). A randomly selected sample of ticks (235 from animals and 36 by dragging) was analyzed using molecular methods to detect species of Babesia and Theileria.
RESULTS: In total, 11 ticks collected from animals (4.7%) and two ticks (5.5%) collected by dragging were positive. Sequencing of PCR products of the small subunit ribosomal RNA gene revealed Babesia caballi (n = 2), Babesia bigemina (n = 3), Theileria sergenti/buffeli/orientalis (n = 7) and Theileria equi (n = 1). None of the detected species has been associated with human infection.