Development of a web-based geographic information system for the epidemiological surveillance of bluetongue in the Balkans and eastern Mediterranean countries.

Bluetongue (BT) is an infectious, non-contagious, arthropod-borne disease transmitted by biting midges. When BT spread throughout the Balkans (affecting Albania, Bosnia-Herzegovina, Bulgaria, Croatia, the Former Yugoslav Republic of Macedonia and Serbia and Montenegro), it caused serious concerns for veterinary authorities in all countries in the eastern Mediterranean. In 2003-2004 a web-based BT geographic information system network was developed and implemented to provide veterinary services with a tool to manage and analyse data on the disease and to exchange information. The system was centralised to ensure there was a common epidemiological surveillance strategy. Spatial and alphanumerical data on the disease were organised in a single relational geographic database. The system was equipped with a number of applications for the display of dynamic maps and data information via the web, with multi-user access for simultaneous queries from additional users.