We implemented a system that builds upon existing technologies and services. The open source platform Ushahidi (2) was used to automatically search for content. An initial query report was generated from Twitter, includes username, content and timestamp. The city of each user was extracted from their profile and a query to GoogleMaps gave us the coordinates. At the end, this new information was uploaded to Ushahidi. We used the keyword 'gripa' (Spanish for flu) and scheduled hourly updates of the search.