Küresel Salgın Dinamikleri: Zoonozlar, Vektörler, İklim Krizi ve Entegre Mücadele

The dynamics of global pandemics are shaped by multidimensional relationships between humans, animals, and the environment. In this context, zoonoses stand out as the most important source of emerging and re-emerging infectious diseases. Wild animal reservoirs such as bats, rodents, and birds, as well as domestic species such as cattle, pigs, and poultry, play a critical role in transmitting pathogens to humans. Additionally, intermediate host species act as a “bridge” in zoonotic transmission, facilitating the emergence of new pandemics. Vectors are another important factor in the rapid spread of epidemics. Pathogens carried by mosquitoes, ticks, and other arthropods pose a risk not only in tropical and subtropical regions but also in previously unaffected areas due to climate change. Arboviruses, in particular, are prominent global threats in this context. The climate crisis directly impacts the acceleration of global pandemic dynamics. Deforestation, agricultural expansion, and habitat loss increase wildlife-human contact, while changes in temperature and rainfall patterns alter vector distribution, thereby increasing the potential for infection spread. Integrated response strategies are essential to combat these multi- layered threats. The One Health approach addresses human, animal, and environmental health as a whole, while early warning and surveillance systems, vaccinations, and international cooperation are fundamental tools in controlling epidemics. Therefore, understanding global epidemic dynamics requires a comprehensive assessment of not only biological but also ecological and socioeconomic factors.