How to Prevent HIV | Your Guide to Staying Safe
HIV, or Human Immunodeficiency Virus, weakens the body's immune system and, if left untreated, can lead to AIDS, the advanced stage of infection. HIV can be transmitted through unprotected sex, sharing needles, or from mother to child during pregnancy, childbirth, or breastfeeding. Thanks to advances in medicine, there are now highly effective ways to prevent HIV, with two major pharmaceutical options being PrEP and PEP. These approaches are designed for different situations but share the same goal: to reduce the risk of HIV infection as much as possible.
PrEP | Pre-Exposure Prophylaxis
PrEP, or Pre-Exposure Prophylaxis, is a medication taken by people who do not have HIV but are at high risk of getting it. This includes individuals with multiple partners, those who do not regularly use condoms, or those with HIV-positive partners. Taking PrEP daily can dramatically reduce the chance of infection. Medical studies have shown that when used consistently, PrEP can reduce the risk of HIV transmission by over 90%. However, PrEP does not protect against other sexually transmitted infections such as syphilis, gonorrhea, or HPV, so the use of condoms remains highly recommended. People on PrEP should also get tested for HIV and STIs every three months to monitor their health.
PEP | Post-Exposure Prophylaxis,
On the other hand, PEP, or Post-Exposure Prophylaxis, is used in emergency situations after a possible exposure to HIV. This may happen after unprotected sex, sexual assault, or accidental exposure to infected blood. PEP must be started within 72 hours of the incident and taken daily for 28 days. The sooner PEP is started, the higher the chance it will be effective. Delaying the start or failing to complete the full course may reduce its effectiveness significantly, potentially leading to infection.
PEP is not intended for repeated or long-term use. If someone finds themselves frequently at risk, switching to PrEP for ongoing protection is a better strategy. In any case, condom use and regular health screenings should remain a part of everyone’s prevention plan.
Although PrEP and PEP are modern, medically approved methods for preventing HIV, condoms still offer the most comprehensive protection. They are affordable, accessible, and effective in preventing both HIV and other STIs. Knowing how to use condoms correctly and consistently plays a crucial role in sexual health.
Deciding whether to use PrEP or PEP depends on your individual risk and circumstances. PrEP is recommended for those with ongoing risk, such as people with multiple sexual partners or those who are unsure of their partner’s status. PEP, however, is designed for emergencies—unexpected situations where risk was unplanned or forced, such as in cases of sexual assault or accidental needle stick injuries.
In conclusion, preventing HIV involves a combination of medical tools, self-awareness, and responsible behavior. Access to proper healthcare, including HIV testing and counseling, plays an essential role. If you believe you may be at risk, reach out to a trusted clinic such as Mplus Sahaklinik Chiang Mai, which offers counseling, testing, and access to both PrEP and PEP.
