This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concepts of Immunity, Classification of Vaccines, Subject name: Social & Preventive Medicine
Active and passive immunity should be given together in all except: 
Select and explain. 
A. Tetanus, B. Rabies, C. Measles, D. Hepatitis B
C: Measles
Answer: C: Measles 
Explanation: - Measles vaccine efficacy is reduced by concurrent administration of measles immunoglobulin. - Measles vaccine alone gives quite good (immunity) level of protection. - Hence we avoid giving Measles Immunoglobulin alongwith measles vaccine. - For tetanus, rabies & Hep B vaccination & Ig can be given together.