CHIKV in PAHO Countries

Chikungunya Cases in The Americas

Data for the map and charts on this page were extracted from reports published by PAHO/ WHO, reformatted and combined with a GIS base map, to produce more informative maps, charts and timelines.

The improved Chikungunya dataset is made freely available as a Fusion Table so that other researchers, students and citizen scientists can view, filter or merge with other data with just a browser, or download for further analysis. See code below 'Map 1' to embed the live map in your own website or to email it as a link.

Map 1. CHIKV in The Americas

Country outlines from Natural Earth Data, originally created by North American Cartographic Information Society members and volunteers from around the globe, and edited in QGIS.

To Share of link directly to the above map:: Open Data: you may also download or interactively explore the compiled Source data within Google Fusion Tables - no login or special software needed.

To embed the above map in your website use the following code: <iframe width="1000" height="560" scrolling="no" frameborder="no" src=";viz=MAP&amp;h=false&amp;lat=16.6817693376313&amp;lng=-67.49172929550001&amp;t=1&amp;z=4&amp;l=col0%3E%3E1&amp;y=2&amp;tmplt=2&amp;hml=KML"></iframe>

Confirmed/ Probable cases are those with a positive result for one or more laboratory tests (IgM ELISA, viral isolation, RT-PCR or 4-fold increase Chikungunya virus specific antibody) - extracted from Notes published in PAHO Reports.

Chart 1. Confirmed Cases by Country

Where is the epidemic at its highest proportion of a country's population in the 51 countries of The Americas reported on by PAHO?

Chart 2. CHIKV Cases/ 100,000 persons

Though PAHO publishes a new report on the incidence of Chikungunya every Friday, individual country figures are noted to the week 'for which information is available'. In some cases, this official information may be 20, 30, 60, 90 or more days old (e.g. the PAHO report of Aug 15, 2014). This places doubt on the reliability of PAHO Reports and suggests that the current total cases may be an underestimate.

Chart 3. Reliability of PAHO Reports

The twenty mostly-Caribbean countries that form the trading bloc CARICOM, have a regional public health agency - CARPHA. It addresses the 'surveillance and management of communicable diseases', and it currently tracks Chikungunya (CHIKV) cases in the twenty CARICOM countries and twelve other countries in the Americas. View an exploration of data extracted from published CARPHA reports.