- HIV/AIDS Research and Interventions
- HIV, Drug Use, Sexual Risk
- Sex work and related issues
- Adolescent Sexual and Reproductive Health
- LGBTQ Health, Identity, and Policy
- HIV Research and Treatment
- Sexuality, Behavior, and Technology
- SARS-CoV-2 and COVID-19 Research
- Reproductive tract infections research
- COVID-19 epidemiological studies
- SARS-CoV-2 detection and testing
- Data-Driven Disease Surveillance
- Vaccine Coverage and Hesitancy
- Homelessness and Social Issues
- COVID-19 and Mental Health
- Syphilis Diagnosis and Treatment
- Herpesvirus Infections and Treatments
- Poxvirus research and outbreaks
- Mobile Health and mHealth Applications
- COVID-19 Clinical Research Studies
- Adolescent and Pediatric Healthcare
- COVID-19 diagnosis using AI
- Suicide and Self-Harm Studies
- COVID-19 Impact on Reproduction
- Bacillus and Francisella bacterial research
Emory University
2016-2025
Emory and Henry College
2023-2024
Georgia Department of Public Health
2015-2022
National Institute on Drug Abuse
2021
Centers for Disease Control and Prevention
2006-2021
Johns Hopkins University Center for AIDS Research
2013-2018
National Center for HIV/AIDS Viral Hepatitis STD and TB Prevention
2005-2013
University of Maryland, Baltimore
2009
New York City Department of Health and Mental Hygiene
2008
Gay Men's Health Crisis
2007-2008
Background: HIV incidence in the United States among men who have sex with (MSM) has been increasing since 2000, and MSM remain most heavily impacted risk group US epidemic. Methods: We modeled transmissions, using data from five cities National Behavioral Surveillance System, HIVNET Vaccine Preparedness Study, other published data. Annual transmissions were estimated by partner type (main or casual) (receptive anal intercourse, insertive oral sex). Results: Sixty-eight percent [95%...
The COVID-19 pandemic is reinforcing health inequities among vulnerable populations, including men who have sex with (MSM). We conducted a rapid online survey (April 2 to April 13, 2020) of related impacts on the sexual 1051 US MSM. Many participants had adverse general wellbeing, social interactions, money, food, drug use and alcohol consumption. Half fewer partners most no change in condom access or use. Some reported challenges accessing HIV testing, prevention treatment services....
In collaboration with the Centers for Disease Control and Prevention, participating state local health departments, universities, community-based organizations applied venue-based, time-space sampling methods first wave of National HIV Behavioral Surveillance men who have sex (NHBS-MSM). Conducted in 17 metropolitan areas United States Puerto Rico from November 2003 through April 2005, NHBS-MSM included: (1) formative research to learn venues, times, recruit MSM; (2) monthly frames eligible...
Background The reasons for black/white disparities in HIV epidemics among men who have sex with puzzled researchers decades. Understanding these requires looking beyond individual-level behavioral risk to a more comprehensive framework. Methods and Findings From July 2010-Decemeber 2012, 803 (454 black, 349 white) were recruited through venue-based online sampling; consenting provided STI testing, completed survey partner inventory, place of residence geocoding. prevalence was higher black...
The world is experiencing the expansive spread of severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) in a global pandemic that placing strain on health care, economic, and social systems. Commitment to implementing proven public strategies will require bold leadership courageous acts by politicians. Developing new innovative communication, mitigation, care approaches, particularly era media, also clearly warranted. We believe best evidence must inform activities three priority...
The American Men’s Internet Survey (AMIS) is an annual web-based behavioral survey conducted in the United States of men who have sex with (MSM). This rapid surveillance report describes sixth cycle data collection (September-December 2018; AMIS 2018). key indicators were same as those previously reported for past cycles. methodology has not substantively changed since 2017. MSM recruited from a variety websites using banner advertisements and email blasts. In addition, participants 2017...
Pre-exposure prophylaxis (PrEP) is a key HIV prevention technology, and pillar of comprehensive approach for men who have sex with (MSM). Because there been no national data to characterize trends in the PrEP continuum United States, overall demographic groups MSM, we aimed describe extent which awareness, willingness use changed over time, specific MSM critical (e.g. Black Hispanic younger rural areas without health coverage).
For CDC's goal of reducing the number new human immunodeficiency virus (HIV) infections to be achieved, data are needed assess prevalence HIV-related risk behaviors at a given time, monitor trends in these behaviors, and correlates risk. These also can used evaluate extent which current HIV-prevention programs reaching targeted communities direct future activities reduce HIV transmission.November 2003-April 2005.The National Behavioral Surveillance (NHBS) System collects behavior from three...
Correlates of main reasons for not HIV testing, testing intentions, and potential use an over-the-counter rapid test (OTCRT) among men who have sex with never tested (NTMSM) are unknown.We evaluated these correlates 946 NTMSM from 6 US cities participated in internet-based survey 2007.Main were low perceived risk (32.2%), structural barriers (25.1%), fear positive (18.1%). Low was associated having fewer unprotected anal intercourse (UAI) partners less frequent the internet information;...
Background AIDSVu is a public resource for visualizing HIV surveillance data and other population-based information relevant to prevention, care, policy, impact assessment. Objective The site, AIDSVu.org, aims make about the US epidemic widely available, easily accessible, locally inform health decision making. Methods develops visualizations, maps, downloadable datasets using results from systems, sources of (eg, Census national probability surveys), developed specifically display...
Background: Men who have sex with men (MSM) are disproportionately affected by human immunodeficiency virus (HIV) and there is evidence that this population participating in increasingly risky sexual behavior. These changes occurring the context of new modes online social interaction—many MSM now report first meeting their partners on Internet. Better monitoring key behavioral indicators among requires use surveillance strategies capitalize these interaction. Therefore, we developed an...
Background: HIV incidence among US young, black men who have sex with (YBMSM) is high, and structural barriers (eg lack of health insurance) may limit access to Pre-exposure prophylaxis (PrEP). Research studies conducted YBMSM must ensure the best available prevention methods, including PrEP. Methods: We implemented an optional, nonincentivized PrEP program in addition standard services a prospective, observational cohort HIV-negative Atlanta, GA. Provider visits laboratory costs were...
Existing health disparities based on race and ethnicity in the United States are contributing to morbidity mortality during coronavirus disease (COVID-19) pandemic. We conducted an online survey of American adults assess similarities differences by with respect COVID-19 symptoms, estimates extent pandemic, knowledge control measures, stigma.
Background: In the United States, men who have sex with (MSM) increasingly represent majority of people living and acquiring human immunodeficiency virus (HIV) infection. Local federal surveillance programs estimate number persons an HIV diagnosis, infection, new diagnoses. Given absence population-based estimates MSM for US states, metropolitan statistical areas (MSAs), or counties, it is not possible to accurately rates using these indicators at levels, inhibiting ability understand burden...
Abstract Background Human immunodeficiency virus (HIV) preexposure prophylaxis (PrEP) has great potential to reduce HIV incidence among young black men who have sex with (YBMSM); however, initiation and persistence for this group remain low. We sought understand the patterns predictors of PrEP uptake discontinuation YBMSM in Atlanta, Georgia. Methods was offered all participants a prospective cohort aged 18–29 years not living HIV. Time uptake, first discontinuation, final were assessed...
There has been increased attention for the need to reduce stigma related sexual behaviors among gay men and other who have sex with (MSM) as part of comprehensive human immunodeficiency virus (HIV) prevention treatment programming. However, most studies focused on measuring mitigating in high-income settings, challenging ability characterize transferability these findings because lack consistent metrics across settings.The objective analyses is describe prevalence behavior United States,...
Peter G. Szilagyi, MD, MPH; Kyla Thomas, PhD; Megha D. Shah, MPH, MS; Nathalie Vizueta, Yan Cui, Sitaram Vangala, Arie Kapteyn, PhD
Abstract Background The global COVID-19 pandemic has the potential to indirectly impact transmission dynamics and prevention of HIV other sexually transmitted infections (STI). It is unknown what combined reductions in sexual activity interruptions HIV/STI services will have on epidemic trajectories. Methods We adapted a model HIV, gonorrhea, chlamydia for population approximately 103 000 men who sex with (MSM) Atlanta area. Model scenarios varied timing, overlap, relative extent...
The response in the United States to coronavirus disease (COVID-19) pandemic has been hampered by a lack of aggressive testing for infection. Testing severe acute respiratory syndrome 2 (SARS-CoV-2) is cornerstone an effective public health response. However, efforts test have limited reagents, limitations availability swabs used collection nasopharyngeal swab (NPS) specimens, personal protective equipment (PPE) care providers collecting NPS and viral transport media transporting specimens....
Options to increase the ease of testing for SARS-CoV-2 infection and immune response are needed. Self-collection diagnostic specimens at home offers an avenue allow people test or without traveling a clinic laboratory. Before this study, survey respondents indicated willingness self-collect COVID-related tests, but hypothetical can differ from post-collection acceptability after participants collect specimens.153 US adults were enrolled in study feasibility patients three (saliva,...
Introduction Cabotegravir long-acting injectable HIV pre-exposure prophylaxis (LA-PrEP) was shown to be safe and effective in multiple clinical trials. Increasing uptake persistence among populations with elevated risk for acquisition, especially men who have sex (MSM), is critical prevention. Objective This analysis aims understand potential users’ preferences LA-PrEP, audience segmentation. Design Willingness use LA-PrEP were measured HIV-negative, sexually active MSM the 2020 American...