This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Which of the following was a pa of expanded programme of immunization ? 
Select and explain. 
A. Hepatitis B, B. Rubella, C. Peussis, D. Mumps
C: Peussis
Answer: C: Peussis 
Explanation: Ans. is 'c' i.e., Peussis In may 1974, the WHO officially launched a global immunization programme, known as expanded programme of immunization (EPI) to protect all children of the word against six vaccine-preventable diseases by the year 2000.