13. None
The most dangerous symptom of HIV is having none at all. Many of those infected do not know they are. This can be particularly dangerous as the person may continue to have unprotected sex, potentially spreading the disease. In 2001, it is estimated that less than 1% of the popular has been tested for HIV. In South Africa, is is estimated that over 5 million people are infected. If you think you are at risk for HIV, get tested right away.