Adversarial manipulation; see “disease”
A virus is an infectious agent so from a spiritual viewpoint is a pollution or corruption of information or knowledge.
Psychological / emotional perspective: Dreaming of an infectious virus has the connotation of us having caught a contaminant or had it passed on to us. Our emotions and feelings may be out of sorts.
Material aspects: Dreaming of a computer virus suggests that a system of communication has broken down or been contaminated and we should perhaps try a different approach.
A health virus suggests something a little more personal and is more concerned with our own reaction to actual physical infection.
See “Computer Virus”, “Illness” or “Plague.”
If you dream that you or your computer have a virus, then this reflects betrayal, violation, and your fear of being invaded by a negative influence. This dream is telling you to set clear boundaries with people in your life that are not watching out for your highest good and to take precautions to defend what is precious to you. This dream may be a warning to take precautions to protect your assets in a more secure way. See Firewall and Sick.