Non-Human Primates as Sentinels and Reservoirs of Emerging Zoonotic Diseases in Indonesia: A One Health Perspective on Pathogen Spillover, Surveillance Gaps, and Regulatory Frameworks.

BACKGROUND AND AIMS: Indonesia harbors extraordinary non-human primate (NHP) diversity, yet deforestation, ecotourism, illegal wildlife trade, and urban encroachment are intensifying human-NHP contact, elevating pathogen spillover risk. This review synthesizes evidence on NHP-associated zoonoses within a One Health framework and proposes an integrated biosurveillance roadmap.

METHODS: A structured search of PubMed, Scopus, and Web of Science (2000-2025), informed by the PRISMA-ScR framework and using pre-specified host, geographic, and pathogen search terms, was conducted and supplemented by grey literature from WHO, FAO, BPOM, and Indonesia's Ministry of Health.

RESULTS: Five priority zoonotic pathogen categories were identified: Plasmodium knowlesi malaria, Macacine alphaherpesvirus 1 (Herpes B virus), simian foamy virus, Mycobacterium tuberculosis complex, and zoonotic gastrointestinal parasites. Surveillance capacity is fragmented and NHP-specific pathogen monitoring is absent from national systems.

CONCLUSIONS: NHP-derived zoonoses represent a growing public health threat in Indonesia. A NHP-inclusive One Health surveillance system integrating molecular diagnostics, geographic information systems, and cross-sectoral regulatory coordination is urgently needed.