Primary prevention includes sexual abstinence, barrier contraception, and avoidance of chemical irritants such as vaginal douches or spermicides. Access to sexual health services is key, as is ensuring that the needs of groups with greater sexual health or access needs are met; interventions and services aimed at reducing sexually transmitted infections (STIs) should be relevant to the groups they are targeting.[16]National Institute for Health and Care Excellence. Reducing sexually transmitted infections. Jun 2022 [internet publication].
https://www.nice.org.uk/guidance/ng221
Screening programmes for asymptomatic cervicitis due to Chlamydia trachomatis may reduce incident pelvic inflammatory disease by more than 50%.[17]Scholes D, Stergachis A, Heidrich FE, et al. Prevention of pelvic inflammatory disease by screening for cervical chlamydial infection. N Engl J Med. 1996 May 23;334(21):1362-6.
https://www.nejm.org/doi/10.1056/NEJM199605233342103?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub%3Dwww.ncbi.nlm.nih.gov
http://www.ncbi.nlm.nih.gov/pubmed/8614421?tool=bestpractice.com
Screening could have more impact if implemented in all preventative care visits.[18]Scholes D, Grothaus L, McClure J, et al. A randomized trial of strategies to increase Chlamydia screening in young women. Prev Med. 2006 Oct;43(4):343-50.
http://www.ncbi.nlm.nih.gov/pubmed/16782182?tool=bestpractice.com
In clinical trials, post-exposure prophylaxis (PEP) with doxycycline has shown benefit in reducing the incidence of subsequent STIs (syphilis, chlamydia, and gonorrhoea) in high-risk men who have sex with men (MSM) and transgender women (TGW).[19]Molina JM, Charreau I, Chidiac C, et al. Post-exposure prophylaxis with doxycycline to prevent sexually transmitted infections in men who have sex with men: an open-label randomised substudy of the ANRS IPERGAY trial. Lancet Infect Dis. 2018 Mar;18(3):308-17.
https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(17)30725-9/fulltext
http://www.ncbi.nlm.nih.gov/pubmed/29229440?tool=bestpractice.com
[20]Luetkemeyer AF, Donnell D, Dombrowski JC, et al. Postexposure doxycycline to prevent bacterial sexually transmitted infections. N Engl J Med. 2023 Apr 6;388(14):1296-306.
https://www.nejm.org/doi/10.1056/NEJMoa2211934
http://www.ncbi.nlm.nih.gov/pubmed/37018493?tool=bestpractice.com
[21]Molina JM, Bercot B, Assoumou L, et al. Doxycycline prophylaxis and meningococcal group B vaccine to prevent bacterial sexually transmitted infections in France (ANRS 174 DOXYVAC): a multicentre, open-label, randomised trial with a 2 × 2 factorial design. Lancet Infect Dis. 2024 Oct;24(10):1093-104.
http://www.ncbi.nlm.nih.gov/pubmed/38797183?tool=bestpractice.com
On the basis of the observed efficacy of PEP with doxycycline for reducing the risk of STIs, Centers for Disease Control and Prevention (CDC) recommends that MSM and TGW who have had a syphilis, chlamydia, or gonorrhea infection within the previous 12 months should receive counselling that PEP with doxycycline can be used to prevent these infections.[22]Bachmann LH, Barbee LA, Chan P, et al. CDC clinical guidelines on the use of doxycycline postexposure prophylaxis for bacterial sexually transmitted infection prevention, United States, 2024. MMWR Recomm Rep. 2024 Jun 6;73(2):1-8.
https://www.cdc.gov/mmwr/volumes/73/rr/rr7302a1.htm?s_cid=rr7302a1_w
PEP with doxycycline could also be discussed with men who have sex with men and transgender women who have not had a bacterial STI within the previous 12 months but who are likely to participate in sexual activities that are known to be high risk for exposure to STIs.[22]Bachmann LH, Barbee LA, Chan P, et al. CDC clinical guidelines on the use of doxycycline postexposure prophylaxis for bacterial sexually transmitted infection prevention, United States, 2024. MMWR Recomm Rep. 2024 Jun 6;73(2):1-8.
https://www.cdc.gov/mmwr/volumes/73/rr/rr7302a1.htm?s_cid=rr7302a1_w
PEP with doxycycline can be self-administered within 72 hours of sexual intercourse. Individuals prescribed PEP with doxycycline should undergo STI testing every 3-6 months.