Chikungunya surveillance case definition - V1.0

This document contains the case definitions for chikungunya. This definition should be used to determine whether a case should be notified to the National Notifiable Diseases Surveilance System.

Page last updated: 12 May 2010

Printable PDF version of Chikungunya case definition (PDF 11 KB)

Last reviewed
Endorsement  date
Implementation date
1.0 Initial CDNA case definition CDWG 4 November 2009 CDNA 12 May 2010 1 July 2010


Only confirmed cases should be notified.

Confirmed case

A confirmed case requires laboratory definitive evidence

Laboratory definitive evidence

1. Isolation of chikungunya virus

2. Detection of chikungunya virus by nucleic acid testing
3. Seroconversion or a significant rise in antibody level or a fourfold or greater rise in titre to chikungunya virus, in the absence of a corresponding change in antibody levels to Ross River virus and Barmah Forest virus
4. Detection of chikungunya virus-specific IgM, in the absence of IgM to Ross River virus and Barmah Forest virus

Confirmation of laboratory results by a second arbovirus reference laboratory is required in the absence of travel history to areas with known endemic or epidemic activity.

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