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1. Explain how a vaccine works.
2. Discuss how genetic engineering was utilized in producing a vaccine to prevent hepatitis-virus infection.
Scriptwriter: Donnabelle G. Velasco
By 106.3 FM DANHS Radio1. Explain how a vaccine works.
2. Discuss how genetic engineering was utilized in producing a vaccine to prevent hepatitis-virus infection.
Scriptwriter: Donnabelle G. Velasco