The first records of adult Hyalomma marginatum and H. rufipes ticks in
Sweden were reported in 2018 (Grandi et al., 2019). These findings
were the starting point of a new surveillance report system at the
National Veterinary Institute (SVA) where the general public was
encouraged to send photos of uncommon/exotic ticks.
Since 2018, repeated findings of adults of alien tick species (e.g., H.
marginatum, H. rufipes and Dermacentor reticulatus) have been
reported in Sweden. Climate change is probably one explanation for
this trend. Monitoring alien ticks is highly relevant since they could
introduce new zoonotic tick-borne pathogens.