First description of Hyalomma rufipes in Austria

This investigation highlights the first detection of Hyalomma rufipes in Austria (district of Lienz, East Tyrol). The tick was discovered on a horse, and it was subjected to a thorough morphological and genetic analysis to ascertain its precise species and the presence of any pathogens. Molecular analysis revealed the presence of Rickettsia aeschlimannii DNA. The identification of Hy. rufipes and R. aeschlimanii was validated through sequence analysis, specifically the cytochrome c oxidase subunit I gene of mitochondrial DNA and the outer membrane protein A gene, respectively. Our findings indicate a single introduction event and did not reveal any evidence of an autochthonous population. Therefore, increased monitoring of alien and potential invasive tick species is strongly recommended. This case highlights that identifying newly introduced species is more probable when public awareness is high and specialised institutions are readily available to validate suspicious discoveries.

Dr Gernot Walder GmbH
Johannes Kepler Universität Linz