Young people in Kenya face severe threats to their health and well-being and an uphill struggle to stay in school, postpone marriage and child bearing, find gainful employment and remain free of sexually transmitted infections (STIs), including HIV. According to Kenya Demographic Health Survey (KDHS), 2008-09, 3 percent of women age 15-19 are HIV infected, compared with less than 1 percent of men age 15-19, while prevalence among women age 20-24 is over four times that of men in the same age group The data show that 3 percent of youth age 15-24 are HIV-positive. Young women age 15-24 are more vulnerable to HIV infection than men of the same age. Young people are becoming sexually active at increasingly younger age because of early physical maturity, social pressures and availability of contraceptives. At the same time, the lengthening of the socially defined period of adolescence due to increased education and delayed marriages means a large proportion of unmarried adolescents are sexually active.