[Environmental changes and the emergence of zoonoses]

Changes in certain global parameters, such as climate and ecosystems, which were anticipated for several decades and confirmed during the second half of the 20^th century, have accelerated significantly. This raises the question of the possible or proven impacts of this acceleration. In the field of human health, as well as animal health and environmental quality, the consequences are already significant. The case of zoonoses, infectious and parasitic diseases that can be transmitted between humans and other vertebrates, illustrates where these changes may lead.This brief overview first outlines the challenges and difficulties of ensuring access to reliable, accessible data sources and then presents a few examples. Awareness at the highest levels is necessary to reverse this trend.