What is the approximate decrease in HIV infection when pre-exposure prophylaxis is taken consistently?

When pre-exposure prophylaxis (PrEP) is taken consistently and as prescribed, studies indicate that it can reduce the risk of acquiring HIV by approximately 90%. This high level of efficacy is primarily due to PrEP's action in preventing the virus from establishing an infection in the body. When individuals adhere rigorously to the daily regimen, the medication maintains optimal drug levels in the bloodstream, significantly lowering the likelihood of HIV transmission during exposure.

The effectiveness of PrEP can differ based on factors such as adherence levels and the various populations in which it is implemented, but consistently taking the medication has been shown to achieve substantial protection. Consequently, this figure reflects the significant public health implications of PrEP in controlling the spread of HIV among at-risk populations.

Understanding the approximate decrease in HIV infection due to consistent PrEP use is crucial for promoting its adoption and ensuring that people at risk are informed of its benefits.