By March 1990 the Centers for Disease Control had counted 1,429 cases of AIDS among teenagers.
Although teenage AIDS cases account for only 1% of the nation's total, the number of cases doubles every 14 months.
More teenagers get the AIDS virus heterosexually than do adults.
National statistics on chlamydia are not available, though experts in various locales report that between 7% and 40% of female teens have been infected.
The syphilis rate for teens age 15-19 has jumped 67% since 1985.
Condom use among teenagers doubled between 1979 and 1988.