Of the estimated 18.9 million new STD cases in 2000, 9.1 million (48%-almost half) were among 15- to 24-year-olds. Year 2000 statistics for the most common STDs:

HIV (est.) Total infections – 40,000
15 – 24 age group – 20,000
(50% of total)...

Chlamydia Total reported – 702,093
15 – 24 age group – 439,041
(74% of total)

Genital Herpes (est.)
Total infections – 1.6 million
15 – 24 age group – 640,000
(40% of total)

Human Papillomavirus (HPV) (est.)
Total infections – 6.2 million
15 – 24 age group – 4.6 million
(74% of total)

Hepatitis B (est.)

Total infections – 81,000

 15 – 24 age group – 15,000

(18.5% of total)

Trichomoniasis (est.)

Total infections – 7.4 million

15 – 24 age group – 1.9 million

(25% of total)

[CDC, Sexually Transmitted Disease Surveillance, 2000, Atlanta, CDC, 2001; CitizenLink 27Feb04]