This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
Safe injection strategy will reduce the occurance of: 
Select and explain. 
A. Hepatitis B, B. Hepatitis A, C. Typhoid, D. Hepatitis E
A: Hepatitis B
Answer: A: Hepatitis B 
Explanation: Ans: a (Hepatitis B) Ref: Park, 19 ed, p. 179Not much to explain. All the others--hepatitis E, typhoid, hepatitits A, are water-borne diseases.