Tick-borne pathogens in removed ticks Veneto, northeastern Italy: A cross-sectional investigation

Travel Med Infect Dis. 2018 Nov-Dec:26:58-61. doi: 10.1016/j.tmaid.2018.08.008. Epub 2018 Sep 6.

Abstract

Background: In Italy, the incidence of tick-borne diseases in humans is underestimated, as they are not obligatorily notifiable. The aim of this study was to investigate the presence of tick-borne pathogens in ticks removed from human subjects in Veneto region (northeastern Italy), an area for which no published studies are yet available.

Method: Forty-five ticks prospectively removed from human subjects, between March and August 2016, were analysed for bacterial DNA.

Results: Seven of 45 ticks were infected with bacteria, including human pathogens: 4 Rickettsia spp. (9%), including R. monacensis and R. helvetica; 3 Borrelia spp. and 1 Anaplasma phagocytophilum. Three subjects bitten by infected ticks reported symptoms.

Conclusions: Rickettsiosis and anaplasmosis, tick-borne diseases previously not considered in northeastern Italy, should not be neglected. A new survey for a longer period is required to obtain stronger epidemiological data.

Keywords: Anaplasma; Borrelia; Italy; Rickettsia; Tick-borne diseases; Ticks.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Anaplasma phagocytophilum / genetics
  • Animals
  • Borrelia / genetics
  • Child
  • Child, Preschool
  • Cross-Sectional Studies
  • DNA, Bacterial
  • Female
  • Humans
  • Infant
  • Italy / epidemiology
  • Ixodes / microbiology*
  • Male
  • Middle Aged
  • Rickettsia / genetics
  • Tick-Borne Diseases / epidemiology*

Substances

  • DNA, Bacterial