France is bracing for a challenging season as health officials report 809 confirmed cases of chikungunya and 30 cases of dengue in 2025. Both diseases are transmitted by the tiger mosquito, a species that has become increasingly common in the country. The tiger mosquito, originally from Southeast Asia, has now been established in 83 of France’s 101 departments, mainly in the south and overseas territories. These mosquitoes are known for biting during the day and are capable of spreading serious illnesses, making them a growing concern for public health. Chikungunya and dengue are both viral infections that can cause severe symptoms, including high fever, joint pain, and in some cases, life-threatening complications. With the arrival of summer, the risk of mosquito bites increases, and so does the likelihood of disease transmission. Public health authorities are urging residents to take preventive measures to reduce the chances of infection. These include eliminating standing water where mosquitoes breed, using insect repellent, and ensuring windows and doors are properly sealed. The Pasteur Institute, a leading French research organization, is actively working on solutions to combat the spread of these diseases. Scientists are exploring new ways to control the tiger mosquito population and develop more effective treatments for infected individuals. Their efforts are part of a broader strategy to protect the public from the health risks associated with these viruses. As the summer season approaches, it is crucial for individuals to be aware of the risks and adopt protective behaviors. Simple steps, such as using mosquito nets, wearing long sleeves, and avoiding areas with high mosquito activity, can significantly reduce the risk of infection. By staying informed and taking proactive measures, people can help limit the spread of these diseases and protect their communities.