The etiological agent of chicken pox is?

Correct option is B

Sol. Varicella zoster virus (VZV) causes chickenpox, presenting with fever and a generalized vesicular rash. It’s part of the Herpesvirus family and can remain latent, reactivating later in life to cause shingles (herpes zoster).
Explanation of each option:
· (a) Herpes zoster – Refers to the reactivated form of VZV, which causes shingles, not the primary chickenpox. Often occurs in older or immunocompromised individuals.
· (b) Varicella zoster – Correct. This is the actual virus responsible for primary chickenpox infection, mostly in children.
· (c) HIV – Causes acquired immunodeficiency syndrome (AIDS) by attacking immune cells; it doesn’t cause vesicular skin rashes like chickenpox.
· (d) Rhabdo virus – Responsible for rabies, a neurological disease transmitted via animal bites, not related to VZV or chickenpox.