About mapCrowd

Worldwide, an estimated 130 to 150 million people are chronically infected with hepatitis C virus (HCV). Obtaining reliable, update-to-date information on HCV is a major challenge for health experts and HCV advocates. The quantity and quality of data on HCV prevalence, access to prevention tools, availability and pricing of diagnostics and drugs, treatment uptake, and national HCV policies varies considerably across countries. Often, this information can be difficult to obtain due to poor surveillance systems, limited diagnostic capacities, weak infrastructure, and lack of political commitment or awareness. Particularly at the national level, sources for recent, consistently updated data are often scarce. Until now, there has been no centralized system for collecting and sharing this vital information with the international health community.

To address this lack of data and enhance advocacy efforts, Médecins du Monde (MdM) and Treatment Action Group (TAG) have launched mapCrowd, a new online crowdsourcing platform designed to gather and publicize the most up-to-date country-level information on HCV. Providing free access to national, regional, and international data, mapCrowd allows users to draw visual comparisons between countries, using interactive graphs, tables, and maps. Users can download the entire mapCrowd database in Excel format for their own analysis.  

Topics covered by mapCrowd include:

  • General country information: development and health indicators
  • Information on HCV Epidemiology
  • Availability and price of HCV diagnostics
  • Registration status, patent barriers, availability and price of HCV treatments
  • National HCV policies and treatment programs
  • Local organizations working on treatment access


The data on the mapCrowd website originate from a combination of scientific publications and field-based sources.  mapCrowd relies on a network of national HCV experts and advocates, or “mapCrowders,” who act as focal points for data collection. Most mapCrowders are affiliated with non-governmental organizations (NGOs). They are selected for their expertise in HCV advocacy and their capacity to obtain country-level information from a variety of sources. To supplement their contributions, mapCrowd also incorporates data gathered from a literature review of peer-reviewed medical journals, expert reports, and institutional research.

MapCrowd data sources

General Country Information

  • The World Bank Open Data (http://data.worldbank.org)

HCV Epidemiological Data

  • Lavanchy, D. (2009). The global burden of hepatitis C. Liver International, 29, 74-81. http://dx.doi.org/10.1111/j.1478-3231.2008.01934.x
  • Gower, E., Estes, C., Blach, S., Razavi-Shearer, K., & Razavi, H. (2014). Global epidemiology and genotype distribution of the hepatitis C virus infection. Journal Of Hepatology, 61(1), S45-S57. http://dx.doi.org/10.1016/j.jhep.2014.07.027
  • Messina, J., Humphreys, I., Flaxman, A., Brown, A., Cooke, G., Pybus, O., & Barnes, E. (2014). Global distribution and prevalence of hepatitis C virus genotypes. Hepatology, 61(1), 77-87. http://dx.doi.org/10.1002/hep.27259
  • Riou, J., Aït Ahmed, M., Blake, A., Vozlinsky, S., Brichler, S., & Eholié, S. et al. (2015). Hepatitis C virus seroprevalence in adults in Africa: a systematic review and meta-analysis. Journal Of Viral Hepatitis, n/a-n/a. http://dx.doi.org/10.1111/jvh.12481
  • United Nations Office on Drugs and Crime,. (2015). World drug report 2015. Vienna: United Nations publication, Sales No. E.15.XI.6.
  • mapCrowders

HCV Tests and Diagnostics

  • mapCrowders

HCV Treatment

  • mapCrowders

HCV Policy

  • United Nations Office on Drugs and Crime,. (2014). World Drug Report 2014. Vienna: United Nations publication, Sales No. E.14.XI.7.
  • Global policy report on the prevention and control of viral hepatitis. Geneva: WHO: 2013. apps.who.int/iris/bitstream/10665/85397/1/9789241564632_eng.pdfmapCrowders

HCV Organizations

  • mapCrowders


This website has been produced with the financial support of the French Development Agency (AFD). The ideas and opinions expressed do not necessarily represent those of AFD.

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