The spread of diseases transmitted by ticks is becoming an increasing concern globally, especially with the rapid changes to our environment driven by climate change and human activities. The project focuses on the Crimean-Congo Haemorrhagic Fever Virus (CCHFV), a dangerous virus spread by ticks in many regions across Africa, Europe, and Asia. Ticks, particularly those of the Hyalomma species, are the main carriers of this virus. While some regions such as South Africa and parts of Europe are considered hotspots for CCHFV outbreaks, the factors driving the spread of the virus remain poorly understood. The project’s main goal is to better understand how the virus, the ticks that carry it, and the environment interact, so that we can predict and hopefully reduce the viral spread in the future. One area of focus is how Hyalomma marginatum and Hyalomma rufipes—two closely related species of ticks—spread across different habitats. These ticks can be transported long distances by migratory birds, which may help the ticks to cross geographical barriers, bringing them into new areas. The project also aims to investigate whether these tick species are interbreeding, creating hybrids that could alter how the virus is transmitted. By studying the genetics of these ticks across different regions, we will better understand how different tick populations are related and how their movement might be affecting pathogen spread. The team will also study the viruses found in the ticks. We know that ticks can carry several different viruses, and this project will identify which viruses are present in different regions. This will help to determine whether specific tick populations carry more dangerous strains of viruses. The research will look at how environmental factors, such as temperature, humidity, and land use, influence where ticks live and how they spread. This information will help us predict how climate change might affect tick populations and viral transmission in the future. The project is an intercontinental collaboration involving researchers from four countries, who will share their expertise and data to tackle this problem. The findings will help prepare for future disease outbreaks linked to changing environmental conditions. This knowledge will be crucial for public health authorities in planning disease prevention and control strategies in regions at risk.