2024 PN NCLEX Questions Nursing Practice Question
Which of the following vaccines contains a live virus?
Correct Answer: A
Rationale: Varicella vaccine contains a live attenuated form of the varicella-zoster virus, which helps the immune system build protection against chickenpox. In contrast, IPV (Inactivated Polio Vaccine) uses killed virus, making it non-infectious. DTaP (Diphtheria, Tetanus, and Pertussis) is composed of inactivated components of the bacteria, not live organisms. Hepatitis B vaccine contains recombinant DNA technology and does not use live virus. Therefore, only the varicella vaccine employs a live virus to stimulate an immune response.