💉 Viral Vaccine

Let’s understand this in a very simple way.

What is a viral vaccine?
A viral vaccine protects the body against diseases caused by viruses.

Which option is a viral vaccine?

✅ Correct Answer: (a) Oral polio vaccine (OPV)

Why OPV?
Polio is caused by the poliovirus.

👉 Oral Polio Vaccine contains weakened live virus to produce immunity.

Why other options are not correct?

• (b) Cholera vaccine → ❌ Protects against bacterial disease
• (c) BCG vaccine → ❌ For tuberculosis (bacterial)
• (d) Tetanus toxoid → ❌ Tetanus is caused by bacteria

Important Point:
OPV is a:

• Live attenuated viral vaccine
• Given orally
• Used in polio prevention programs

Simple Exam Trick:
Polio = Virus → OPV is viral vaccine

📌 Disclaimer: For exam preparation only. Follow immunization guidelines in practice.

💚 Exam Objective Nursing – Asha D
Concept clarity • Easy recall • Nursing success