Spot maps are used for a disease in Epidemiology for depiction of:-: (A) Local distributions, (B) Rural-urban variations, (C) National variations, (D) International variations
Answer is A. SPOT-MAPS:- Depict geographical/ local distribution of a disease or health condition in a defined place and time. Helps in localizing the source of infection locally in a geographical area. Used by John Snow to localize source of Asiatic Cholera in London. JOHN SNOW - FATHER OF EPIDEMIOLOGY/ Modern epidemiology.