Denial is a psychological defense mechanism in which both an individual or a community, when faced with a fact too uncomfortable to accept, will reject that fact. There are several levels to denial:
1. Deny the reality of the fact altogether.
The link between HIV and AIDS related opportunistic infections is a clearly established fact, however there are certain people who will deny this link.
2. Minimise the fact through acknowledging the fact but denying its seriousness.