Can the print on a website be infected?

I copied and pasted a few paragraphs from a website. When I tried to save my document, which is a Microsoft Word document, my Bitdefender antivirus tells me that the document is infected with Trojan.Groooboor.Gen.22. and then my document gets deleted. I'm really confused. How is this possible? I thought that an actual object, like some type of program had to be downloaded onto a computer in order for the computer to be infected. (As you can probably tell, I know very little about how a virus gets spread to a computer).

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