On 6 June 2017, the World Health Organization (WHO) published updates to its ‘Essential Medicines List’ (EML). Read more here.

Eurosurveillance is on the updated list of the Directory of Open Access Journals and in the SHERPA/RoMEO database. Read more here.

Follow Eurosurveillance on Twitter: @Eurosurveillanc

In this issue

Home Eurosurveillance Weekly Release  2007: Volume 12/ Issue 47 Article 4
Back to Table of Contents

Eurosurveillance, Volume 12, Issue 47, 22 November 2007

Citation style for this article: Burckhardt F, Kissling E. ‘The Disease Detectives’: a comic perspective on outbreak investigations. Euro Surveill. 2007;12(47):pii=3315. Available online:

‘The Disease Detectives’: a comic perspective on outbreak investigations

F Burckhardt (, E Kissling2,3

1. Robert Koch Institute, Berlin, Germany
2. Scientific Institute of Public Health, Brussels, Belgium
3. European Programme for Intervention Epidemiology Training

Outbreak investigations often share common methodologies and scenarios. One has to confirm the outbreak, establish a case definition, generate hypotheses, decide on a study design, gather data as fast and completely as possible, perform statistical analyses and (hopefully) identify the vehicle and take appropriate control measures.

Training programmes in intervention epidemiology such as the European Programme for Intervention Epidemiology Training (EPIET) or national field epidemiology training programmes such as the German Programme for Applied Epidemiology (PAE) rely on adapted case studies of past outbreak investigations in order to teach the required methodology to new generations of intervention epidemiologists.

Our aim was to contribute to this growing body of teaching material in a light and entertaining way by publishing a comic book, titled ‘The Disease Detectives’. Our goals were to create an introductory teaching aid to the conceptual framework of outbreak investigations for public health practitioners and to write an entertaining comic book for children aged nine years and older. To our knowledge, comics have not played a large role in teaching medicine or public health, although a comic on facts about sleeping sickness was published in 1997 [1].

Published case studies and available course material on outbreak investigations were screened, and consensus methods abstracted and rewritten into a fictitious food-borne outbreak of Salmonella after a neighbourhood barbecue. The storyline follows the steps taken in a food-borne outbreak investigation.

Black and white illustrations were hand-drawn on A3 Bristolboard paper with pen and ink and then scanned for digital processing using free open source software (OSS). Scans were first transformed with OSS Inkscape [2] into black and white vector graphics in order to remove grey fringes. After importing and colouring using the OSS GIMP [3] speech bubbles and text were added using Inkscape.

The book and all digital work were put under a Creative Commons 'attribution, non-commercial, share alike' license (4). Creative Commons is a non-profit corporation that helps people who create content define a range of legal controls that allows certain shared use of their material [5].

The Disease Detectives describes how a group of children discover the source of an unknown disease that has made their friends fall ill (Figures 1 and 2). The 14-page comic is freely available in English, German and Norwegian at:
A translation package with all digital art and a short video on how to edit speech bubbles in Inkscape is also available. The comic was presented at the ESCAIDE conference in Stockholm in October 2007.

We have created a freely accessible and editable tool to explain the principles of field epidemiology. By wrapping a comic around common methods of outbreak investigations, we have provided a gentle introduction for a non-scientific audience. So far, the comic has already been used in Norway in a health promotion exercise for children (personal communication).

Both the use of OSS and a liberal copyright encourage the free circulation of the comic and its adaptation to different cultural environments. It is very easy to modify the graphics, for instance changing the characters’ skin colours or the text in speech bubbles with readily available, free software. During the ESCAIDE conference, several European public health specialists offered to translate the comic into further languages. To reach our target audience, we will mainly rely on online initiatives such as OER Commons [6], conferences and journal publications.

We will extend the comic with a teaching annex that will use the comic’s panels to describe the steps of an outbreak investigation in greater detail and elaborate statistical and analytical methodology such as relative risks and epidemiological curves.

We hope that The Disease Detectives will kindle readers’ interest in outbreak investigations, serve as an entertaining teaching aid and perhaps even encourage other health professionals to create similar free teaching tools.

The authors would like to thank Hege Line Magnussen Løwer for the Norwegian translation and EPIET-C12 for their creative environment.

  1. 1. Aouamri M. JJ, Oattand P. Sleeping Sickness: Human African Trypanosomiasis. 1997 [cited 2007 21.11.2007]; Available from:
  2. Harrington B. CJA, Byak B. Inkscape. Draw Freely. In. 0.45.1 ed; 2007.
  3. Natterer M. NSm. GIMP: The GNU Image Maipulation Program. In. 2.4 ed; 2007.
  4. Creative Commons. 2007 [cited 2007 12.11.2007]; Available from:
  5. Lessig L. Free Culture. The Nature and Future of Creativity. 2nd ed. New York: Penguin Group; 2005.
  6. ISKME. Open Educational Resources Commons. 2007 [cited 2007 21.11.2007]; Available from:

back to top

Back to Table of Contents

The publisher’s policy on data collection and use of cookies.

Disclaimer: The opinions expressed by authors contributing to Eurosurveillance do not necessarily reflect the opinions of the European Centre for Disease Prevention and Control (ECDC) or the editorial team or the institutions with which the authors are affiliated. Neither ECDC nor any person acting on behalf of ECDC is responsible for the use that might be made of the information in this journal. The information provided on the Eurosurveillance site is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. Our website does not host any form of commercial advertisement. Except where otherwise stated, all manuscripts published after 1 January 2016 will be published under the Creative Commons Attribution (CC BY) licence. You are free to share and adapt the material, but you must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

Eurosurveillance [ISSN] - ©2007-2016. All rights reserved

This website is certified by Health On the Net Foundation. Click to verify. This site complies with the HONcode standard for trustworthy health information:
verify here.