Of, relating to, or caused by a virus. See examples of viral used in a sentence. A viral film clip, story, or message is one that spreads quickly because people share it on social media and send it to each other.

It may also refer to: Memetic behavior likened that of a virus, for example: The meaning of viral is of, relating to, or caused by a virus. How to use viral in a sentence. Of, relating to, or caused by a virus.

Of, relating to, or caused by a virus.