Virus – A virus is a threatening and negative dream symbol, indicating disease and contagion. If you dream that you have a virus and are in danger of spreading it to others, this signifies something negative inside yourself that affects others in a negative way. The most common thing for this to symbolize is a bad attitude or a morose or depressed outlook on life. It is very hard to be positive when people around you are negative, so your grumpy mood may be causing everyone around you to have a bad day too. On the other hand, if you dream that someone else has a virus, this may be an indication that this person is a toxic influence on the people around them, and that you need to protect yourself from the influence of this person. People who sap energy from those around them are very difficult to deal with, and this sort of person can be lowering your productivity and even your quality of life without you even knowing it, especially if this person is close to you.