Which of the following is Not an example of a live attenuated vaccine?
- Tetanus vaccine
- MMR vaccine
- Varicella (chickenpox) vaccine
Influenza vaccine
The Correct Option is A
Solution and Explanation
Step 1: Understanding live attenuated vaccines. - Live attenuated vaccines contain weakened but live forms of the pathogen, triggering a strong immune response. - Examples include MMR (Measles, Mumps, and Rubella) vaccine, Varicella vaccine, and live-attenuated influenza vaccine (LAIV).
Step 2: Explanation of incorrect options. - MMR vaccine (B): Contains live attenuated viruses. - Varicella (chickenpox) vaccine (C): Live attenuated virus-based vaccine. - Influenza vaccine (D): The nasal spray (LAIV) is a live attenuated form, though flu shots are inactivated.
Step 3: Selecting the correct option. - Tetanus vaccine is NOT a live attenuated vaccine. - It is a toxoid vaccine, meaning it contains an inactivated toxin rather than the pathogen itself. Thus, the correct answer is (A) Tetanus vaccine.
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