Annual blood smear examination rate is an indicator of -
A
Disease rate (Prevalence)
B
Operation effciency
C
% of transmission of malaria
D
Infectivity rate
High-Yield Explanation
Prevalence of malaria can be inspected by annual blood smear examination. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21ST EDITION. PAGE NO - 238