Greg Millett
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Greg Millett has a total of 68 co-authors. Here are the top co-authors by number of shared publications:
- Brian Honermann
Public Policy Office, amfAR, Foundation for AIDS Research, Washington, DC
9 shared publications - Patrick Sean Sullivan
Rollins School of Public Health, Emory University, Atlanta, GA
8 shared publications - Carlos del Rio
Division of Infectious Diseases, Department of Internal Medicine, Emory University School of Medicine, Atlanta, Georgia
6 shared publications - Jennifer Taussig
Department of Epidemiology Rollins School of Public Health Emory University Atlanta, GA United States
6 shared publications - Nicole Luisi
Department of Epidemiology Rollins School of Public Health Emory University Atlanta, GA United States
6 shared publications - Colleen Frances Kelley
The Hope Clinic, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, 500 Irvin Ct, Suite 200, Decatur, GA 30030, USA
5 shared publications
Latest Publications
- Open Access
- 27 July 2026
- Published by Wiley in Journal of the International AIDS Society
- Vol. 29 (8) , e70182
The Impact of the United States Foreign Aid Freeze on HIV Service Delivery in PEPFAR‐Supported Countries: A Facility‐Level Analysis of 2024–2025 Programme Data
Introduction: On 24 January 2025, the U.S. government issued a stop‐work order freezing foreign assistance, including support for the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), although a limited waiver for selected “life‐saving” interventions was subsequently granted. PEPFAR's official 2025 monitoring results, released 17 April 2026, included only fourth‐quarter data, whereas an earlier inadvertent release contained data for all four quarters of 2025. Using both datasets, we conducted a systematic facility‐level assessment of HIV programme performance while accounting for reporting disruptions. Methods: Facilities were categorized by reporting between Q1 2024 and Q4 2025 (continuous, intermittent, dropped, new). We assessed changes in HIV treatment, testing, prevention of mother‐to‐child transmission (PMTCT) and HIV prevention across facility categories. We additionally analyse changes in human resources for health (HRH) reported by PEPFAR. Results: The dataset included 31,628 facilities and community service sites. Most sites reported continuously (71.5%), while 16.7% reported intermittently, 3.9% stopped reporting, 3.1% were new in 2025 and 2.5% were community service sites. Between Q4 2024 and Q4 2025, the total number of people receiving HIV treatment declined by −1%. People on treatment increased 0.3% at continuously reporting facilities but declined −6.0% at intermittently reporting facilities. HIV testing declined by −18% overall. HIV diagnoses decreased by −13% at continuously reporting facilities, −32% in intermittently reporting facilities and −36% in community services sites. PMTCT infant testing declined by −6% at continuously reporting facilities and −60% at intermittently reporting facilities, while infant HIV diagnoses declined by −12% and −31%, respectively. Pre‐exposure prophylaxis initiations declined by −33%, and the number of direct service delivery healthcare workers declined by −62,541 (−24%). Conclusions: Although HIV treatment remained relatively stable at continuously reporting facilities, substantial declines were observed in HIV testing, HIV diagnoses, treatment initiation, prevention services and the PEPFAR‐supported workforce. These findings suggest that treatment coverage alone is an insufficient indicator of programme resilience. As countries assume greater responsibility for HIV programmes, sustained investment across the entire HIV care cascade coupled with transparent reporting and robust monitoring systems covering the full prevention, testing, treatment and health workforce landscape will be essential to maintain progress towards epidemic control.
- 27 July 2026
- Published by Wiley in Journal of the International AIDS Society
- Vol. 29 (8) , e70182
Open AccessThe Impact of the United States Foreign Aid Freeze on HIV Service Delivery in PEPFAR‐Supported Countries: A Facility‐Level Analysis of 2024–2025 Programme Data
Introduction: On 24 January 2025, the U.S. government issued a stop‐work order freezing foreign assistance, including support for the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), although a limited waiver for selected “life‐saving” interventions was subsequently granted. PEPFAR's official 2025 monitoring results, released 17 April 2026, included only fourth‐quarter data, whereas an earlier inadvertent release contained data for all four quarters of 2025. Using both datasets, we conducted a systematic facility‐level assessment of HIV programme performance while accounting for reporting disruptions. Methods: Facilities were categorized by reporting between Q1 2024 and Q4 2025 (continuous, intermittent, dropped, new). We assessed changes in HIV treatment, testing, prevention of mother‐to‐child transmission (PMTCT) and HIV prevention across facility categories. We additionally analyse changes in human resources for health (HRH) reported by PEPFAR. Results: The dataset included 31,628 facilities and community service sites. Most sites reported continuously (71.5%), while 16.7% reported intermittently, 3.9% stopped reporting, 3.1% were new in 2025 and 2.5% were community service sites. Between Q4 2024 and Q4 2025, the total number of people receiving HIV treatment declined by −1%. People on treatment increased 0.3% at continuously reporting facilities but declined −6.0% at intermittently reporting facilities. HIV testing declined by −18% overall. HIV diagnoses decreased by −13% at continuously reporting facilities, −32% in intermittently reporting facilities and −36% in community services sites. PMTCT infant testing declined by −6% at continuously reporting facilities and −60% at intermittently reporting facilities, while infant HIV diagnoses declined by −12% and −31%, respectively. Pre‐exposure prophylaxis initiations declined by −33%, and the number of direct service delivery healthcare workers declined by −62,541 (−24%). Conclusions: Although HIV treatment remained relatively stable at continuously reporting facilities, substantial declines were observed in HIV testing, HIV diagnoses, treatment initiation, prevention services and the PEPFAR‐supported workforce. These findings suggest that treatment coverage alone is an insufficient indicator of programme resilience. As countries assume greater responsibility for HIV programmes, sustained investment across the entire HIV care cascade coupled with transparent reporting and robust monitoring systems covering the full prevention, testing, treatment and health workforce landscape will be essential to maintain progress towards epidemic control.
- Open Access
- 31 December 2025
- Published by Taylor & Francis in Sexual and Reproductive Health Matters
- Vol. 33 (1) , 1-19
Declines in HIV testing and diagnoses: a policy analysis of the 2019 Title X federal regulations on family planning clinics
The Office of Population Affairs’ Title X Family Planning Program (Title X) is the only federal program in the United States (US) dedicated solely to providing comprehensive family planning and rel...
- 31 December 2025
- Published by Taylor & Francis in Sexual and Reproductive Health Matters
- Vol. 33 (1) , 1-19
Open AccessDeclines in HIV testing and diagnoses: a policy analysis of the 2019 Title X federal regulations on family planning clinics
The Office of Population Affairs’ Title X Family Planning Program (Title X) is the only federal program in the United States (US) dedicated solely to providing comprehensive family planning and rel...
- Open Access
- 6 December 2024
- Published by SAGE Publications in AIDS Patient Care and STDs
- Vol. 38 (12) , 559-565
Rejection of Federal Guidance by Southern US States and Projected Consequences for Ending the HIV Epidemic
Evidence-based HIV programming focused on populations at risk of HIV is critical for sustainable disease prevention. In response to the Tennessee Department of Health decision to reject federal HIV guidance, the present study examines the potential impact of Southern US states adopting policies that direct HIV prevention and testing efforts away from populations “disproportionately affected” (DA) by HIV toward populations “non-disproportionately affected” (NDA). Descriptive and projection analyses with publicly available data explored the influence of policies emphasizing NDA populations on HIV cases. Across the Southern US, DA populations (cisgender women, men who have sex with men, transgender persons, and people who inject drugs) represent the absolute majority (90%) of diagnosed HIV cases, whereas NDA populations (pregnant women, infants, first responders, and human trafficking victims) represent only a small proportion (2%) of diagnosed HIV cases. Estimated projections show avoidable HIV cases among DA populations in the Southern US alone could aggregate to over 32,000 by 2030 if prevention efforts exclusively concentrate on NDA populations, which approximates the current national annual incidence of 36,000 HIV cases. Prevention efforts aimed at DA populations compared with NDA populations could reduce new infections across the Southern US by 47% versus 1%, respectively, by 2030. Policies disregarding epidemiological data may hinder efforts to end the HIV epidemic, both regionally and nationally.
- 6 December 2024
- Published by SAGE Publications in AIDS Patient Care and STDs
- Vol. 38 (12) , 559-565
Open AccessRejection of Federal Guidance by Southern US States and Projected Consequences for Ending the HIV Epidemic
Evidence-based HIV programming focused on populations at risk of HIV is critical for sustainable disease prevention. In response to the Tennessee Department of Health decision to reject federal HIV guidance, the present study examines the potential impact of Southern US states adopting policies that direct HIV prevention and testing efforts away from populations “disproportionately affected” (DA) by HIV toward populations “non-disproportionately affected” (NDA). Descriptive and projection analyses with publicly available data explored the influence of policies emphasizing NDA populations on HIV cases. Across the Southern US, DA populations (cisgender women, men who have sex with men, transgender persons, and people who inject drugs) represent the absolute majority (90%) of diagnosed HIV cases, whereas NDA populations (pregnant women, infants, first responders, and human trafficking victims) represent only a small proportion (2%) of diagnosed HIV cases. Estimated projections show avoidable HIV cases among DA populations in the Southern US alone could aggregate to over 32,000 by 2030 if prevention efforts exclusively concentrate on NDA populations, which approximates the current national annual incidence of 36,000 HIV cases. Prevention efforts aimed at DA populations compared with NDA populations could reduce new infections across the Southern US by 47% versus 1%, respectively, by 2030. Policies disregarding epidemiological data may hinder efforts to end the HIV epidemic, both regionally and nationally.
- Open Access
- 22 November 2024
- Published by Wiley in Journal of the International AIDS Society
- Vol. 27 (11) , e26396
The ground has shifted under PEPFAR: what does that mean for its future?
- 22 November 2024
- Published by Wiley in Journal of the International AIDS Society
- Vol. 27 (11) , e26396
Open AccessThe ground has shifted under PEPFAR: what does that mean for its future?
- Open Access
- 8 December 2023
- Published by Wiley in Journal of the International AIDS Society
- Vol. 26 (12) , e26197
There is no path to ending AIDS by 2030 without improving human rights
- 8 December 2023
- Published by Wiley in Journal of the International AIDS Society
- Vol. 26 (12) , e26197
Open AccessThere is no path to ending AIDS by 2030 without improving human rights
- Open Access
- 1 June 2023
- Published by Wiley in Journal of the International AIDS Society
- Vol. 26 (6) , e26108
Failing to learn the lessons: the U.S. response on global health security ignores 20 years of PEPFAR
- 1 June 2023
- Published by Wiley in Journal of the International AIDS Society
- Vol. 26 (6) , e26108
Open AccessFailing to learn the lessons: the U.S. response on global health security ignores 20 years of PEPFAR
- 6 March 2023
- Published by Taylor & Francis in AIDS Care
- Vol. 35 (8) , 1154-1163
Racial differences in the association of undetectable HIV viral load and transportation to an HIV provider among men who have sex with men in Atlanta, Georgia: a health equity perspective
There are inequities in HIV outcomes among Black gay, bisexual, and other sexual minority men who have sex with men (GBMSM) compared to GBMSM overall, including access to transportation to HIV care. It is unclear if the relationship between transportation and clinical outcomes extends to viral load. We assessed the relationship between transportation dependence to an HIV provider and undetectable viral load among Black and White GBMSM in Atlanta. We collected transportation and viral load information from GBMSM with HIV from 2016–2017 (n = 345). More Black than White GBMSM had a detectable viral load (25% vs. 15%) and took dependent (e.g. public) transportation (37% vs. 18%). Independent (e.g. car) transportation was associated with undetectable viral load for White GBMSM (cOR 3.61, 95% CI 1.45, 8.97) but was attenuated by income (aOR. 2.29, 95% CI 0.78, 6.71), and not associated for Black GBMSM (cOR 1.18, 95% CI 0.58, 2.24). One possible explanation for no association for Black GBMSM is that there are more competing barriers to HIV care for Black GBMSM than White GBMSM. Further investigation is needed to confirm whether 1) transportation is unimportant for Black GBMSM or 2) transportation interacts with additional factors not considered in this analysis.
- 6 March 2023
- Published by Taylor & Francis in AIDS Care
- Vol. 35 (8) , 1154-1163
Racial differences in the association of undetectable HIV viral load and transportation to an HIV provider among men who have sex with men in Atlanta, Georgia: a health equity perspective
There are inequities in HIV outcomes among Black gay, bisexual, and other sexual minority men who have sex with men (GBMSM) compared to GBMSM overall, including access to transportation to HIV care. It is unclear if the relationship between transportation and clinical outcomes extends to viral load. We assessed the relationship between transportation dependence to an HIV provider and undetectable viral load among Black and White GBMSM in Atlanta. We collected transportation and viral load information from GBMSM with HIV from 2016–2017 (n = 345). More Black than White GBMSM had a detectable viral load (25% vs. 15%) and took dependent (e.g. public) transportation (37% vs. 18%). Independent (e.g. car) transportation was associated with undetectable viral load for White GBMSM (cOR 3.61, 95% CI 1.45, 8.97) but was attenuated by income (aOR. 2.29, 95% CI 0.78, 6.71), and not associated for Black GBMSM (cOR 1.18, 95% CI 0.58, 2.24). One possible explanation for no association for Black GBMSM is that there are more competing barriers to HIV care for Black GBMSM than White GBMSM. Further investigation is needed to confirm whether 1) transportation is unimportant for Black GBMSM or 2) transportation interacts with additional factors not considered in this analysis.
- Open Access
- 2 July 2021
- Published by Springer Nature in Systematic Reviews
- Vol. 10 (1) , 1-7
Racial and ethnic disparities in viral acute respiratory infections in the United States: protocol of a systematic review
Background: The COVID-19 pandemic caused by SARS-CoV-2 has highlighted consistent inequities in incidence, disease severity, and mortality across racial and ethnic minority populations in the United States (US) and beyond. While similar patterns have been observed with previous viral respiratory pathogens, to date, no systematic review has comprehensively documented these disparities or potential contributing factors. In response, this review aims to synthesize data on racial and ethnic disparities in morbidity and mortality due to viral acute respiratory infections (ARI) other than SARS-CoV-2. This review will focus on understanding structural health and social factors to contextualize race and ethnicity driving these disparities in the US. Methods: We will conduct a systematic review of studies published from January 1, 2002, onward. Our search will include PubMed/MEDLINE, EBSCO Host-CINAHL Plus, PsycInfo, EMBASE, and Cochrane Library databases to identify relevant articles. We will include studies of any design that describe racial/ethnic disparities associated with viral ARI conducted in the US. Primary outcomes include incidence, disease severity or complication, hospitalization, or death attributed to ARI. Secondary outcomes include uptake of preventive interventions including vaccination, handwashing, social distancing, and wearing masks. Two reviewers will independently screen all citations, full-text articles, and abstract relevant data. Data characterizing individual-, community-, and structural-level factors associated with these disparities will be abstracted to better understand the underlying structural inequities contributing to racial disparities in ARI. We will assess the methodological quality of all studies and will conduct meta-analyses using random effects models if appropriate. Discussion: Findings from this systematic review will shed light on patterns of racial and ethnic disparities in viral ARI in the United States to support mathematical modeling of epidemic trajectories, intervention impact, and structural drivers of transmission, including structural racism. Moreover, data emerging from this review may reignite pandemic preparedness focused on communities with specific vulnerabilities related to living and working conditions given prevailing structural inequities, thus facilitating improved future pandemic responses to novel or endemic viral respiratory pathogens. Systematic review registration: PROSPERO CRD42020219771
- 2 July 2021
- Published by Springer Nature in Systematic Reviews
- Vol. 10 (1) , 1-7
Open AccessRacial and ethnic disparities in viral acute respiratory infections in the United States: protocol of a systematic review
Background: The COVID-19 pandemic caused by SARS-CoV-2 has highlighted consistent inequities in incidence, disease severity, and mortality across racial and ethnic minority populations in the United States (US) and beyond. While similar patterns have been observed with previous viral respiratory pathogens, to date, no systematic review has comprehensively documented these disparities or potential contributing factors. In response, this review aims to synthesize data on racial and ethnic disparities in morbidity and mortality due to viral acute respiratory infections (ARI) other than SARS-CoV-2. This review will focus on understanding structural health and social factors to contextualize race and ethnicity driving these disparities in the US. Methods: We will conduct a systematic review of studies published from January 1, 2002, onward. Our search will include PubMed/MEDLINE, EBSCO Host-CINAHL Plus, PsycInfo, EMBASE, and Cochrane Library databases to identify relevant articles. We will include studies of any design that describe racial/ethnic disparities associated with viral ARI conducted in the US. Primary outcomes include incidence, disease severity or complication, hospitalization, or death attributed to ARI. Secondary outcomes include uptake of preventive interventions including vaccination, handwashing, social distancing, and wearing masks. Two reviewers will independently screen all citations, full-text articles, and abstract relevant data. Data characterizing individual-, community-, and structural-level factors associated with these disparities will be abstracted to better understand the underlying structural inequities contributing to racial disparities in ARI. We will assess the methodological quality of all studies and will conduct meta-analyses using random effects models if appropriate. Discussion: Findings from this systematic review will shed light on patterns of racial and ethnic disparities in viral ARI in the United States to support mathematical modeling of epidemic trajectories, intervention impact, and structural drivers of transmission, including structural racism. Moreover, data emerging from this review may reignite pandemic preparedness focused on communities with specific vulnerabilities related to living and working conditions given prevailing structural inequities, thus facilitating improved future pandemic responses to novel or endemic viral respiratory pathogens. Systematic review registration: PROSPERO CRD42020219771
- Open Access
- 30 June 2021
- Published by Wiley in Journal of the International AIDS Society
- Vol. 24 (S3) , e25753
Current allocations and target apportionment for HIV testing and treatment services for marginalized populations: characterizing PEPFAR investment and strategy
Introduction: The United States President’s Emergency Plan for AIDS Relief (PEPFAR) is a large bilateral funder of the global HIV response whose policy decisions on key populations (KPs) programming determine the shape of the key populations’ response in many countries. Understanding the size and relative share of PEPFAR funds going to KPs and the connection between PEPFAR’s targets and resulting programming is crucial for successfully serving key populations.Methods: Publicly available PEPFAR budgets for key populations’ services were assessed by country and geographical region for all 52 countries with budget data in fiscal year (FY) 2020. For the 23 countries which completed a full planning process in FY 2018 and 2019, PEPFAR targets for HIV testing and treatment initiation for key populations were assessed. Expenditures for KP programming were calculated to determine whether shifts in targets translated into programming. Implementing partners were characterized by the level of specialization using the share of assigned targets made up by KPs. The average target per year and implementing partner was calculated for each KP group and indicator.Results: PEPFAR country KP budgets ranged from US$35,000 to $15.2 million, and the proportion of funding to key populations varied by region, with Eastern and Southern African countries having the lowest proportion. Between FY 2018 and 2019, the KP targets for HIV testing and treatment among KPs increased, whereas expenditures on key populations decreased from US$115.4 to $111.0 million. Of the 11 countries with an increase in HIV testing targets, seven had a decrease in KP expenditures. Of the nine countries with an increase in treatment initiation targets, five had a decrease in KP expenditures. The proportion of targets assigned to partners which do not specialize in key populations increased from FY 2018 to 2019.Conclusions: Current key population policies have not resulted in a tight connection between targets and expenditures. This includes assigning a large proportion of key populations programming to partners who do not specialize in key populations, which may weaken the performance management role of the targets. These results signal that a new approach to key populations programming is needed.
- 30 June 2021
- Published by Wiley in Journal of the International AIDS Society
- Vol. 24 (S3) , e25753
Open AccessCurrent allocations and target apportionment for HIV testing and treatment services for marginalized populations: characterizing PEPFAR investment and strategy
Introduction: The United States President’s Emergency Plan for AIDS Relief (PEPFAR) is a large bilateral funder of the global HIV response whose policy decisions on key populations (KPs) programming determine the shape of the key populations’ response in many countries. Understanding the size and relative share of PEPFAR funds going to KPs and the connection between PEPFAR’s targets and resulting programming is crucial for successfully serving key populations.Methods: Publicly available PEPFAR budgets for key populations’ services were assessed by country and geographical region for all 52 countries with budget data in fiscal year (FY) 2020. For the 23 countries which completed a full planning process in FY 2018 and 2019, PEPFAR targets for HIV testing and treatment initiation for key populations were assessed. Expenditures for KP programming were calculated to determine whether shifts in targets translated into programming. Implementing partners were characterized by the level of specialization using the share of assigned targets made up by KPs. The average target per year and implementing partner was calculated for each KP group and indicator.Results: PEPFAR country KP budgets ranged from US$35,000 to $15.2 million, and the proportion of funding to key populations varied by region, with Eastern and Southern African countries having the lowest proportion. Between FY 2018 and 2019, the KP targets for HIV testing and treatment among KPs increased, whereas expenditures on key populations decreased from US$115.4 to $111.0 million. Of the 11 countries with an increase in HIV testing targets, seven had a decrease in KP expenditures. Of the nine countries with an increase in treatment initiation targets, five had a decrease in KP expenditures. The proportion of targets assigned to partners which do not specialize in key populations increased from FY 2018 to 2019.Conclusions: Current key population policies have not resulted in a tight connection between targets and expenditures. This includes assigning a large proportion of key populations programming to partners who do not specialize in key populations, which may weaken the performance management role of the targets. These results signal that a new approach to key populations programming is needed.
- Open Access
- 1 June 2021
- Published by JMIR Publications Inc. in JMIR Research Protocols
- Vol. 10 (6) , e30020
Disparities in Care Outcomes in Atlanta Between Black and White Men Who Have Sex With Men Living With HIV: Protocol for a Prospective Cohort Study (Engage[men]t) (vol 10, e21985, 2021)
[This corrects the article DOI: 10.2196/21985.].
- 1 June 2021
- Published by JMIR Publications Inc. in JMIR Research Protocols
- Vol. 10 (6) , e30020
Open AccessDisparities in Care Outcomes in Atlanta Between Black and White Men Who Have Sex With Men Living With HIV: Protocol for a Prospective Cohort Study (Engage[men]t) (vol 10, e21985, 2021)
[This corrects the article DOI: 10.2196/21985.].