Publications by authors named "Ryan J Zahn"

Background: Gay, bisexual, and other men who have sex with men (GBMSM) continue to be overrepresented in human immunodeficiency virus (HIV) infection in the United States. HIV prevention and care interventions that are tailored to an individual's serostatus have the potential to lower the rate of new infections among GBMSM. Mobile technology is a critical tool for disseminating targeted messaging and increasing uptake of basic prevention services including HIV testing, sexually transmitted infection (STI) testing, and pre-exposure prophylaxis (PrEP).

View Article and Find Full Text PDF

HIV prevention for gay, bisexual, and other men who have sex with men (GBMSM) and transgender women (TGW) is critical to reducing health disparities and population HIV prevalence. To understand if different types of stigma impact engagement with HIV prevention services, we assessed associations between stigmas and use of HIV prevention services offered through an HIV prevention intervention. This analysis included 201 GBMSM and TGW enrolled in a prospective cohort offering a package of HIV prevention interventions.

View Article and Find Full Text PDF

Background: Men who have sex with men (MSM) are disproportionately affected by HIV in China. Globally, younger MSM are at higher risk for incident HIV infections, but there has been substantial variation in the estimates of age-stratified HIV incidence among MSM in mainland China, potentially due to regional differences in the nature of the epidemic. Given the need for quality epidemiological data to meet the global goal of ending new HIV infections by 2030, this systematic review and meta-analysis aims to determine age-stratified HIV incidence in mainland China, including consideration by geographic region and time.

View Article and Find Full Text PDF

Background: Men who have sex with men (MSM) continue to be the predominately impacted risk group in the United States HIV epidemic and are a priority group for risk reduction in national strategic goals for HIV prevention. Modeling studies have demonstrated that a comprehensive package of status-tailored HIV prevention and care interventions have the potential to substantially reduce new infections among MSM. However, uptake of basic prevention services, including HIV testing, sexually transmitted infection (STI) testing, condom distribution, condom-compatible lubricant distribution, and preexposure prophylaxis (PrEP), is suboptimal.

View Article and Find Full Text PDF

Synopsis of recent research by authors named "Ryan J Zahn"

  • - Ryan J Zahn's research primarily focuses on HIV prevention strategies tailored for gay, bisexual, and other men who have sex with men (GBMSM) and transgender women, with an emphasis on the use of mobile technology and addressing stigma to enhance service uptake.
  • - His recent studies demonstrate the critical role of mobile messaging interventions in improving access to essential HIV prevention services, such as testing and pre-exposure prophylaxis (PrEP), particularly among vulnerable populations.
  • - Zahn's systematic review protocol aims to clarify age-stratified HIV incidence among MSM in China, highlighting regional differences and the need for quality epidemiological data to address global HIV infection goals.