Tenofovir is crucial in the field of epidemiology for several reasons. Firstly, it has revolutionized the treatment of HIV by being a part of highly active antiretroviral therapy (HAART). Secondly, it serves as a preventive measure in the form of pre-exposure prophylaxis (PrEP), significantly reducing the risk of HIV infection in high-risk populations. Thirdly, its effectiveness against Hepatitis B has made it a vital part of managing and controlling this chronic infection.
