Which of the following is a surveillance method used by epidemiologists?
A) Morbidity and mortality reports
B) Reviews of laboratory results
C) Demographic data on populations
D) All of the above
Answer: D
Which of the following is a surveillance method used by epidemiologists?
A) Morbidity and mortality reports
B) Reviews of laboratory results
C) Demographic data on populations
D) All of the above
Answer: D