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About CHOLDInet
Our Goal
Our Strategies
Terms of Reference
Priority Activities
Core Members
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What is CHOLDInet?

CHOLDInet, conceived in March 2009 as a World Health Organization (WHO) initiative, is a laboratory network for cholera and other diarrhoeal infections and will be a member of the Global Task Force  on Cholera control.

CHOLDInet operates under the patronage of the WHO Global Laboratory Directory (GLaD) which is a support system to encourage laboratory networks to be part of a global community of peers.

CHOLDInet will aim for the greatest geographic representation of laboratory networks on cholera and other diarrhoeas but will strive to be useful in cholera endemic and epidemic areas where the need is the greatest.

CHOLDInet will provide strategic advice and share expertise at the International, regional and national levels in order to enhance local and regional capacity for laboratory-based detection and surveillance of cholera and other etiologies of diarrhoeal diseases.


Our Goal

To strengthen laboratory capacity for monitoring and rapid detection of cholera and other causes of diarrhoeal diseases to advance the application of control measures.

Our Strategies

  • To facilitate information sharing between laboratories working on cholera and other diarrhoeal diseases in order to enhance diagnostic capabilities

  • To promote best laboratory practices that will lead to reliable laboratory data

  • To establish a global reference collection and information archive of strains and reagents

Terms of Reference

To establish, maintain and expand collaborative links between microbiology laboratories that work on cholera and other diarrhoeal diseases with the objective of providing an international forum for sharing information, expertise and action.

To provide expertise to develop robust laboratory-based surveillance systems with emphasis on how to utilize information to sufficiently reduce the number of people affected by epidemics, especially in poverty-based settings.

To facilitate surveillance by providing reasonable quantities of laboratory diagnostic reagents, subject to availability and sharing best practices from both feasibility as well as sustenance viewpoints.

To facilitate access to a Referral Centre for identification and confirmation of strains, serotypes and genotypes.

To provide assistance in determining antimicrobial resistance and recommendations on alternative treatment practices.

To foster and promote research that will lead to better understanding of the effect of global climate change on climate-sensitive diseases like cholera.

To provide expert assistance on creation of laboratory databases and interpretation of data.

To provide a single comprehensive source of information on cholera by developing a web-based cholera portal.

Priority Activities

  • Provide guidance and protocols for evaluation of rapid diagnostic tests for cholera.

  • Assist WHO with building and enhancing global laboratory capacity for the detection and laboratory surveillance of Vibrio cholerae, by providing training and reagent development/distribution support.

  • Establish international database of molecular characteristics of Vibrio Cholerae.

  • To review, update standardized reference protocols and guidance.

  • Establish an international culture collection for reference services and research.



P-33, C.I.T. Road, Scheme-XM,
Beliaghata, Kolkata 700 010, India
Phone: 91-33 2363 3373, 2370 1176
Fax: 91-33-2363 2398/2370 5066

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