Not every antagonist is a guy whose face is contorted in an evil sneer as he twirls his waxed mustache. Sometimes the threat comes in the form of an immutable force of nature. That form may be tiny.
Those are germs—a new variety discovered by the research team in your book. Tell me what these germs are going to do the the characters in your world, and how the scientists who created or identified it feel about what is going to happen.
Strut your stuff. Give me two or three paragraphs in the comment section that lay out a premise that will hook your reader.
