Hyalomma ticks detected in Hungary, posing disease risks

The HUN-REN Ecological Research Centre’s Tick Monitoring program has detected the non-native Hyalomma tick in Hungary. Recent data indicates that four out of five reported sightings occurred in locations where the species had previously been identified.

Unlike the native Ixodes ricinus, the Hyalomma tick is larger, possesses a dark, solid shield, and features striped legs. These ticks are more active in pursuing hosts rather than waiting passively. A primary health concern is their ability to transmit Crimean-Congo hemorrhagic fever, a serious disease that can have a mortality rate as high as 30 percent.

Researchers are investigating whether these sightings represent isolated introductions, possibly via migratory birds, or if the species is establishing a stable, overwintering population. While current findings are described as encouraging, experts suggest that climate change and recent dry, mild autumn conditions may favor the survival and northward expansion of these ticks. The research center continues to monitor the population to determine if the species is adapting to local climatic conditions.