Which is not the viral infection–

Correct option is C

Sol. Hib disease is caused by the bacterium Haemophilus influenzae type b — hence, it is not a viral infection. It can cause pneumonia, meningitis, and epiglottitis, particularly in young children. On the other hand, Hepatitis B, Measles, and Chickenpox are all caused by viruses, and their spread can be controlled through vaccines.
Explanation of each option:
· (a) Hepatitis–B – Incorrect. It is a viral infection caused by the Hepatitis B virus, affecting the liver and transmitted through blood and body fluids.
· (b) Measles – Incorrect. Measles is a highly contagious viral illness, preventable with the MMR vaccine.
· (c) Hib Disease – Correct. Hib (Haemophilus influenzae type b) is a bacterial infection, not viral. It is preventable through Hib vaccination.
· (d) Chicken Pox – Incorrect. Caused by the Varicella-zoster virus, chickenpox is a common childhood viral infection characterized by itchy rashes.