Optimizing syndromic health surveillance in free ranging great apes: The case of Gombe National Park

Tiffany M. Wolf, Wenchun “Annie” Wang, Elizabeth V. Lonsdorf, Thomas R. Gillespie, Anne Pusey, Ian Gilby, Dominic A. Travis, Randall S. Singer

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Syndromic surveillance is an incipient approach to early wildlife disease detection. Consequently, systematic assessments are needed for methodology validation in wildlife populations. We evaluated the sensitivity of a syndromic surveillance protocol for respiratory disease detection among chimpanzees in Gombe National Park, Tanzania. Empirical health, behavioural, and demographic data were integrated with an agent-based, network model to simulate disease transmission and surveillance. Surveillance sensitivity was estimated as 66% (95% CI: 63.1, 68.8%) and 59.5% (95% CI: 56.5%, 62.4%) for two monitoring methods (weekly count and prevalence thresholds respectively), but differences among calendar quarters in outbreak size and surveillance sensitivity suggest seasonal effects. We determined that a weekly detection threshold of ≥2 chimpanzees with clinical respiratory disease leading to outbreak response protocols (enhanced observation and biological sampling) is an optimal algorithm for outbreak detection in this population. Synthesis and applications. This is the first quantitative assessment of syndromic surveillance in wildlife, providing a model approach to detecting disease emergence. Coupling syndromic surveillance with targeted diagnostic sampling in the midst of suspected outbreaks will provide a powerful system for detecting disease transmission and understanding population impacts.

Original languageEnglish (US)
Pages (from-to)509-518
Number of pages10
JournalJournal of Applied Ecology
Issue number3
StatePublished - Mar 2019


  • agent-based modelling
  • apes
  • disease ecology
  • disease transmission
  • network model
  • respiratory disease
  • syndromic surveillance
  • wildlife surveillance

ASJC Scopus subject areas

  • Ecology


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