The idea of infection can be both good and bad. We can be infected by laughter or become infected with something that makes us sick. The idea is that something that is in your environment is having an influence on you through osmosis. What type of friends are you surrounding yourself with and is it a healthy type of interaction? The infection had a cause and you are getting a message to explore where it came from. Only then can you solve the lack of wellness portrayed by this dream. See also Bacteria and also, Healing.