At this year's Paris International Agricultural Show, we have chosen to highlight examples of the harmful consequences of changing ecosystems and climate disruption, whether this concerns the proliferation of insects and other vectors that promote the spread of diseases, such as ticks and mosquitoes, or the establishment of emerging or invasive species that threaten crops, forests and gardens. This special close-up tells you all you need to know about these species, the associated diseases and our work to address these health issues.