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1. What do epidemiologists study?

A. risk factors for different diseases

B. how often a disease occurs in a particular area or group of people

C.blood and heart diseases

D. Non-infectious diseases and their causes

User Jayashree
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2 Answers

3 votes
A, risk factors of different diseases
User Onedaywhen
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The study of the distribution and determinants if health-related states and events in specific populations
User Rakeeb Rajbhandari
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