Continues scrutiny of factors that affect the occurence of a disease is -
Surveillance has been defined as the continuous scrutiny of all aspects of occurrence and the spread of diseases that are peinent to effective control. Surveillance goes beyond the passive repoing of cases Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 138
Epidemiology
Monitoring
Surveillance
Screening
Epidemiology