Capable of being transmitted or spread, often used to describe an emotion or behavior.

संक्रामक

English Usage: Her laughter was contagious, making everyone in the room smile.

Hindi Usage: उसकी हंसी संक्रामक थी, जिसने कमरे में सभी को मुस्कुराने पर मजबूर कर दिया।

A disease that can be spread from one individual to another.

संक्रामक रोग

English Usage: The flu is a contagious illness that spreads easily during the winter.

Hindi Usage: फ्लू एक संक्रामक रोग है जो सर्दियों में आसानी से फैलता है।