http://www.cdc.gov/vaccines/pubs/surv-manual/default.htm
Guidelines for those directly involved in surveillance of vaccine-preventable diseases, especially personnel at the local health departments. For each of the vaccine-preventable diseases, this manual includes a chapter describing the importance of rapid case identification; the importance of surveillance; disease reduction goals; case definitions (including clinical description and case classifications); epidemiologically important data to be collected during case investigation; activities for enhancing surveillance; activities for case investigation; and activities for outbreak control.