But it requires a while for HIV to develop into the condition called AIDS fully. Those who have AIDS remain HIV positive and will transmit the virus to others. HIV is passed from one person to another when it’s spread from the within of an infected person’s body to the inside of another person’s body. Having unprotected sex with an contaminated person is one way the virus spreads because during intercourse, infected liquids — such as for example semen , vaginal liquids, or blood — are transmitted from one person to another.But new analysis gives scientists a obvious picture of how cold sores can lead to a health concern that is clearly a bit more serious: Alzheimer’s disease. That’s right. The same herpes simplex virus type 1 that causes chilly sores on the lips, mouth, or gums can donate to dementia, according to a report released in the March 31 problem of the journal PLoS ONE. Herpes infects mucous membranes, such as the vision or lip, and generates viral particles, lead author Dr. Elaine Bearer, a pathology professor at the University of New Mexico School of Medicine, said in a written declaration released with the scholarly study.