Prevention and control of STIs are based on the following
five major strategies (3):

1. Accurate risk assessment and education and counseling
   of persons at risk regarding ways to avoid STIs through
   changes in sexual behaviors and use of recommended
   prevention services
2. Pre-exposure vaccination for vaccine-preventable STIs
3. Identification of persons with an asymptomatic
   infection and persons with symptoms associated with
   an STI
4. Effective diagnosis, treatment, counseling, and followup
   of persons who are infected with an STI
5. Evaluation, treatment, and counseling of sex partners
   of persons who are infected with an STI