Tom was reading newspaper. He saw the phrase “going viral” and he didn’t know what it meant. Dylan’s dancing cat video is going viral. No more than two days, his video got millions of watchers. In the video, his cat moved and jumped with the music on TV. Many people said they couldn’t stop laughing when watching the video. People then started to make their funny pet videos and put them on the Internet. He found the meaning of “virus” and “viral in a dictionary. “Virus” is a small living thing that makes people sick. “Viral” is the adjective of virus. Which is the meaning of “going viral” ?

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