Question
Which of the following vaccines, was used first time to immunize humans and included in Expanded Program on Immunization (EPI) :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
BCG
Identifying the First Human Immunization Vaccine in EPI
The question asks for the vaccine that was utilized first for human immunization and was subsequently included in the Expanded Program on Immunization (EPI).
Vaccine Historical Context
- BCG (Bacillus Calmette-Guérin): Developed in the early 20th century (first administered in 1921), BCG is a vaccine against tuberculosis. It is historically significant as one of the earliest widely adopted vaccines for human use.
- OPV (Oral Polio Vaccine): Introduced in the 1960s.
- DPT (Diphtheria, Pertussis, Tetanus): The combined DPT vaccine became widely used in the mid-20th century.
- Measles Vaccine: Developed and introduced in the 1960s.
BCG and the Expanded Program on Immunization (EPI)
The Expanded Program on Immunization (EPI), established by the World Health Organization (WHO) in 1974, aimed to ensure all children had access to essential vaccines. BCG was a foundational vaccine included from the program's inception due to its established role in preventing severe forms of tuberculosis.
Conclusion
Comparing the historical timelines and the core mandate of EPI, the BCG vaccine uniquely fulfills both criteria: being among the very first vaccines used for human immunization and being a key component of the EPI.
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