Which of the following is communicable?
-
sleeping sickness
-
chicken pox
-
elephantasis
-
pharyngitis
B
Correct answer
Explanation
Chicken pox (varicella) is a highly communicable viral disease that spreads easily through airborne droplets, direct contact, or contaminated surfaces. It's caused by the varicella-zoster virus. Sleeping sickness and elephantiasis are vector-borne (not directly person-to-person), and pharyngitis can be non-infectious or viral/bacterial but is less definitively communicable than chicken pox.