John S. Mackenzie

The ethos of a people... we may say, constitutes the atmosphere in which the best members of a race habitually live...-from "The Virtues"Offered as a textbook for university students and drawing from both classical and modern schools of philosophical thought-from Aristotle and the Bible to Mill, Hume, and Kant-this comprehensive 1901 overview of the universe of ethical thought is still a valuable resource today. The fascinating discussions within explore: .the nature of ethics.the art of conduct.ethics and the physical sciences.ethics and economics.psychological hedonism.the true sense of freedom.the origin of conscience.the moral connoisseur.the general problem of authority.the social universe.theories of punishment.morality and religion.and more.A book to dip into at random or to read in-depth, this is as fresh and original today as it was a century ago.British philosopher JOHN STUART MACKENZIE (1860-1935) was professor of logic and philosophy at the University College of South Wales and Monmouthshire, and a fellow of Trinity College, Cambridge.

A Manual of Ethics

James E. Childs

Jürgen A. Richt

This volume offers an overview of the processes of zoonotic viral emergence, the intricacies of host/virus interactions, and the role of biological transitions and modifying factors. The themes introduced here are amplified and explored in detail by the contributing authors, who explore the mechanisms and unique circumstances by which evolution, biology, history, and current context have contrived to drive the emergence of different zoonotic agents by a series of related events.

Wildlife and Emerging Zoonotic Diseases: The Biology, Circumstances and Consequences of Cross-Species Transmission

Martyn Jeggo

Peter Daszak

Juergen A. Richt

One Health is an emerging concept that aims to bring together human, animal, and environmental health. Achieving harmonized approaches for disease detection and prevention is difficult because traditional boundaries of medical and veterinary practice must be crossed. In the 19th and early 20th centuries this was not the case—then researchers like Louis Pasteur and Robert Koch and physicians like William Osler and Rudolph Virchow crossed the boundaries between animal and human health. More recently Calvin Schwabe revised the concept of One Medicine. This was critical for the advancement of the field of epidemiology, especially as applied to zoonotic diseases. The future of One Health is at a crossroads with a need to more clearly define its boundaries and demonstrate its benefits. Interestingly the greatest acceptance of One Health is seen in the developing world where it is having significant impacts on control of infectious diseases.

Food Safety and Security, and International and National Plans for Implementation of One Health Activities

One Health: The Human-Animal-Environment Interfaces in Emerging Infectious Diseases

The One Health concept recognizes that the health of humans, animals, and their ecosystems are interconnected, and that a coordinated, collaborative, multidisciplinary, and cross-sectoral approach is necessary to fully understand and respond to potential or existing risks that originate at the animal–human–ecosystems interfaces. Thus, the One Health concept represents a holistic vision for addressing some of the complex challenges that threaten human and animal health, food safety, and the environments in which diseases flourish. There are many examples showing how the health of humans is related to the health of animals and the environment. Diseases shared between humans and animals are zoonoses. Some zoonoses have been known for many years, whereas others have emerged suddenly and unexpectedly. Over 70% of all new emerging diseases over the past few decades have been zoonoses that have emerged from wildlife, most often from bats, rodents, or birds. Examples of zoonoses are many and varied, ranging from rabies to bovine tuberculosis, and from Japanese encephalitis to SARS. Clearly, a One Health approach is essential for understanding their ecology, and for outbreak response and the development of control strategies. However, the One Health concept and approach is much broader than zoonoses; it extends to including antimicrobial resistance, food safety, and environmental health and, consequently, impacts on global health security, economic wellbeing, and international trade. It is this breadth of One Health that connects the papers in this Special Issue.

John S. Mackenzie

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