Some people know their own medical histories very well and thus remember the exact day.
Many do not. Natural history studies have shown in untreated people that HIV infection causes a loss of about 50-70 CD4 cells per year. Effective antiviral therapy will alter the number of CD4 cells lost per year, and also increase the life expectancy. Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither The Body nor any sponsor is the publisher or speaker of posted visitors' questions or the experts' material.