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HIV pre-exposure prophylaxis (PrEP) drastically reduces the risk of HIV infection if taken as prescribed, providing almost perfect protection even during unprotected sexual intercourse. Although this has been transformative in reducing new…

Populations and Evolution · Quantitative Biology 2025-12-15 Piklu Mallick , Laura Müller , Antonio Marín-Carballo , Philipp Dönges , Seba Contreras

Sexual contacts are the main spreading route of HIV. This puts sex workers at higher risk of infection even in populations where HIV prevalence is moderate or low. Alongside condom use, Pre-Exposure Prophylaxis (PrEP) is an effective tool…

Pre-exposure prophylaxis (PrEP) has been established as an effective tool for preventing HIV infection among men who have sex with men (MSM). However, there is the possibility of PrEP usage leading to increased sexual partners and increased…

Populations and Evolution · Quantitative Biology 2025-07-29 Esteban Vargas Bernal , Morgan Spahnie , William Miller , Abigail Turner , Joseph Tien

Pre-exposure prophylaxis (PrEP) consists in the use of an antiretroviral medication to prevent the acquisition of HIV infection by uninfected individuals and has recently demonstrated to be highly efficacious for HIV prevention. We propose…

Optimization and Control · Mathematics 2017-10-12 Cristiana J. Silva , Delfim F. M. Torres

The government's effort to alleviate HIV stigma has been justified by the suppression effect of stigma on the HIV testing rate. Nevertheless, the deterrence effect of stigma on undesirable sexual behaviours has long been overlooked. This…

General Economics · Economics 2025-12-01 Pengyu Li

The past decade has seen tremendous progress in the development of biomedical agents that are effective as pre-exposure prophylaxis (PrEP) for HIV prevention. To expand the choice of products and delivery methods, new medications and…

Methodology · Statistics 2020-11-03 Fei Gao , David V. Glidden , James P. Hughes , Deborah Donnell

Men who have sex with men (MSM) remain disproportionately affected by HIV, yet optimizing Pre-exposure Prophylaxis (PrEP) distribution remains a public health challenge. Current guidelines and most modelling studies do not incorporate…

Physics and Society · Physics 2026-03-17 João Brázia , István Z. Kiss , Alexandre P. Francisco , Andreia Sofia Teixeira

In the quest for enhanced HIV prevention methods, the advent of antiretroviral drugs as pre-exposure prophylaxis (PrEP) has marked a significant stride forward. However, the ethical challenges in conducting placebo-controlled trials for new…

Methodology · Statistics 2024-07-09 Fei Gao , Holly Janes , Susan Buchbinder , Deborah Donnell

Pre-exposure prophylaxis (PrEP) is an effective intervention for preventing HIV transmission, but high cost and uneven uptake raise challenges for resource allocation. While spillover effects, wherein PrEP use in one group reduces…

Dynamical Systems · Mathematics 2026-02-06 Chiara Piazzola , Salman Safdar , Alex Viguerie , Abba B. Gumel

The OraQuick In-Home HIV self-test represents a fast, inexpensive, and convenient method for users to assess their HIV status. If integrated thoughtfully into existing testing practices, accompanied by efficient pathways to formal…

Populations and Evolution · Quantitative Biology 2024-04-08 Alex Viguerie , Chaitra Gopalappa , Cynthia M. Lyles , Paul G. Farnham

Background: High HIV transmission persists in many U.S. jurisdictions despite prevention efforts. HIV self-testing offers a means to overcome barriers associated with routine laboratory-based testing but carries a risk of increasing…

Dynamical Systems · Mathematics 2025-04-23 Alex Viguerie

Anti-retroviral drugs can reduce the infectiousness of people living with HIV by about 96%--treatment as prevention or TasP--and can reduce the risk of being infected by an HIV positive person by about 70%--pre-exposure prophylaxis or…

Populations and Evolution · Quantitative Biology 2012-09-04 Brian G. Williams , Eleanor Gouws , John Hargrove , Cari van Schalkwyk , Hilmarie Brand

Cross-sectional incidence estimation based on recency testing has become a widely used tool in HIV research. Recently, this method has gained prominence in HIV prevention trials to estimate the "placebo" incidence that participants might…

Methodology · Statistics 2024-12-18 Jianan Pan , Marlena Bannick , Fei Gao

The transmission through contacts among MSM (men who have sex with men) is one of the dominating contributors to HIV prevalence in industrialized countries. In Amsterdam, the capital of the Netherlands, the MSM risk group has been traced…

Social and Information Networks · Computer Science 2010-12-30 Shan Mei , Rick Quax , David van de Vijver , Yifan Zhu , A. V. Boukhanovsky , P. M. A. Sloot

Sexually transmitted infections (STIs) continue to present a complex and costly challenge to public health programs. The preferences and social dynamics of a population can have a large impact on the course of an outbreak as well as the…

Populations and Evolution · Quantitative Biology 2015-06-30 Michael A. L. Hayashi , Marisa C. Eisenberg

Chlamydia trachomatis (Ct) is the most common bacterial sexually transmitted infection (STI) in the United States and is major cause of infertility, pelvic inflammatory disease, and ectopic pregnancy among women. Despite decades of…

Populations and Evolution · Quantitative Biology 2018-06-14 Asma Azizi Boroojeni

With the advent of effective pre-exposure prophylaxis agents, active-controlled HIV prevention trials have become a common study design. Nevertheless, estimating absolute efficacy relative to a placebo remains important. In this paper, we…

Observed gonorrhea case rates (number of positive tests per 100,000 individuals) increased by 75 percent in the United States between 2009 and 2017, predominantly among men. However, testing recommendations by the Centers for Disease…

Quantitative Methods · Quantitative Biology 2019-04-16 Jessica G. Young , Sarah J. Willis , Katherine Hsu , Michael Klompas , Julia L. Marcus

The development of potent drugs for the control of viraemia in people living with HIV means that infected people may live a normal, healthy life and offers the prospect of eliminating HIV transmission in the short term and HIV infection in…

Quantitative Methods · Quantitative Biology 2013-08-08 Brian G Williams

Background: After a decade of a treatment as prevention (TasP) strategy based on progressive HIV testing scale-up and earlier treatment, a reduction in the estimated number of new infections in men-who-have-sex-with-men (MSM) in England had…

Quantitative Methods · Quantitative Biology 2020-10-05 Francesco Brizzi , Paul J Birrell , Peter Kirwan , Dana Ogaz , Alison E Brown , Valerie C Delpech , O Noel Gill , Daniela De Angelis
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