Disease surveillance, a public health priority -- Understanding the data: health indicators in disease surveillance -- Obtaining the data -- Alerting algorithms for biosurveillance -- Putting it together: the biosurveillance information system -- Modern disease surveillance systems in public health practice -- Canadian applications of modern surveillance informatics -- Case study: use of tele-health data for syndromic surveillance in England and wales -- Surveillance for emerging infection epidemics in developing countries: EWORS and alerta DISAMAR -- Evaulating automated surveillance systems -- Educating the workforce: public health informatics training -- The road ahead: the expanding role of informatics in disease surveillance