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Infectious diseases have the potential to extirpate populations of great apes. As the interface between humans and great apes expands, zoonoses pose an increasingly severe threat to already endangered great ape populations. Despite recognition of the threat posed by human pathogens to great apes, health monitoring is only conducted for a small fraction of the world's wild great apes (and mostly those that are habituated) meaning that outbreaks of disease often go unrecognized and therefore unmitigated. This lack of surveillance (even in sites where capacity to conduct surveillance is present) is the most significant limiting factor in our ability to quickly detect and respond to emerging infectious diseases in great apes when they first appear. Accordingly, we must create a surveillance system that links disease outbreaks in humans and great apes in time and space, and enables veterinarians, clinicians, conservation managers, national decision makers, and the global health community to respond quickly to these events. Here, we review existing great ape health surveillance programs in African range habitats to identify successes, gaps, and challenges. We use these findings to argue that standardization of surveillance across sites and geographic scales, that monitors primate health in real‐time and generates early warnings of disease outbreaks, is an efficient, low‐cost step to conserve great ape populations. Such a surveillance program, which we call "Great Ape Health Watch" would lead to long‐term improvements in outbreak preparedness, prevention, detection, and response, while generating valuable data for epidemiological research and sustainable conservation planning. Standardized monitoring of great apes would also make it easier to integrate with human surveillance activities. This approach would empower local stakeholders to link wildlife and human health, allowing for near real‐time, bidirectional surveillance at the great ape‐human interface. Highlights: This study reviewed existing great ape health surveillance programs in Africa and Asia to identify successes and challenges, and highlight the need for a standardized approach to great ape health surveillance.We propose "Great Ape Health Watch"—an integrated, real‐time monitoring system for great ape and human health that would generate early warnings of disease outbreaks, as a cost‐efficient strategy to secure future great ape conservation.Integrated ape–human syndromic surveillance would not only provide continuity in outbreak preparedness and data collection, but also empower local stakeholders to link wildlife and human health for impactful conservation and healthcare provisions. [ABSTRACT FROM AUTHOR]

Pathogen exchange between humans and primates has been facilitated by anthropogenic disturbances, such as changing land use patterns, habitat destruction, and poaching, which decrease population sizes and increase levels of primate-human interaction. As a result, human and domestic animal diseases have become a recognized threat to endangered primate populations. Tuberculosis is a major global human and animal health concern, especially in equatorial Africa where many of the remaining free-living great ape populations exist in proximity with exposed and/or infected human populations and their domestic animals. Increased anthropogenic pressure creates an opportunity for the anthropozoonotic spread of this disease. This review examines current evidence of the risk of tuberculosis transmission to great apes, the benefits and limitations of current detection methods, the impact of current great ape conservation and management strategies on this risk, and the need for an ecosystem health-based approach to mitigating the risks of tuberculosis transmission to great apes. Am. J. Primatol. 76:2-13, 2014. © 2013 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]