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Emerging Zoonotic Diseases and One Health
The fact that outbreaks of zoonotic diseases have increased in the past few decades
underlines the critical relevance of a One Health approach to global health challenges. Zoonotic
diseases, meaning animal-to-human pathogen transmission, have been one of the biggest threats
to public health, evidenced by the COVID-19 pandemic, outbreaks of Ebola, and continuous
threats from influenza. In a nutshell, holistic, interdisciplinary approaches to prevention,
detection, and response are requested due to the complex interplay of human activities, animal
health, and environmental factors in the rising and spreading of these diseases.
Through human encroachment into wildlife habitats, intensified agricultural practices,
and global trade and travel, unprecedented opportunities have been opened up for zoonotic
pathogens to cross species barriers and spread rapidly across the globe (Esposito et al., 2023).
Climate change across this landscape likely will continue to alter the ecosystem and patterns of
animal migration, potentially bringing humans into contact with new disease reservoirs. The
wildlife trade, both legal and illegal, increases the risk through close proximity of humans and
exotics, as in the suspected origins of the COVID-19 pandemic. All of these multifaceted drivers
of zoonotic diseases underline the need for in-depth knowledge about the human-animal-
environment interface.
The One Health approach gives a very optimistic framework for dealing with the
challenge of emerging zoonotic diseases. This is an integrated approach that calls for
collaboration among human health, veterinary medicine, and environmental sciences in pursuit
of optimal health for all (Raja Danasekaran, 2024). Critical elements of the One Health approach
include joint surveillance systems for early detection of zoonotic threats, jointly coordinated
research efforts with respect to ecology and transmission dynamics of disease, and collaborative
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interventions aimed at drivers of emerging diseases (Raja Danasekaran, 2024). Applying
principles of One Health should involve implementation that can break traditional silos between
disciplines and sectors through cross-sectoral partnerships and policy development recognizing
integration and interconnectedness of human, animal, and environmental health.
A One Health approach will be truly seminal in building resilience for the future within
an ever-globalizing world. Such a new paradigm in how we approach public health and disease
prevention offers the potential to mitigate the risk of emerging zoonoses but contribute towards
wider global challenges from antimicrobial resistance through food security. Recognizing the
intricate links between human activities, animal health, and ecosystem dynamics will help to
improve the strategies of prevention, detection, and response to zoonotic diseases, with the
aspiration for a healthy and sustainable future for all species.
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References
Esposito, M., Turku, S., Lehrfield, L., & Shoman, A. (2023). The Impact of Human Activities on
Zoonotic Infection Transmissions. The Impact of Human Activities on Zoonotic Infection
Transmissions, 13(10), 1646–1646. https://doi.org/10.3390/ani13101646
Raja Danasekaran. (2024). One Health: A Holistic Approach to Tackling Global Health Issues.
Indian Journal of Community Medicine/Indian Journal of Community Medicine, 49(2),
260–263. https://doi.org/10.4103/ijcm.ijcm_521_23
