James Benjamin Brock
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
James Benjamin Brock has a total of 48 co-authors. Here are the top co-authors by number of shared publications:
Leandro Antonio Mena
Division of Infectious Diseases, Department of Medicine, University of Mississippi Medical Center, Jackson
2 shared publications- Aaron Julius Siegler
Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
1 shared publication - Andrew Wilhelm1 shared publication
Aubri Hickman
Department of Medicine, Division of Infectious Diseases, University of Mississippi Medical Center . Jackson, Mississippi , USA
1 shared publication- Audrey L. French
Department of Medicine, Cook County Health, Chicago, IL 60612, USA
1 shared publication - Bhagyashri Navalkele
University of Mississippi Medical Center, Jackson, MS, USA
1 shared publication
Latest Publications
- 4 September 2026
- Published by Wolters Kluwer Health in JAIDS Journal of Acquired Immune Deficiency Syndromes
PREVALENCE AND SEVERITY OF STEATOTIC LIVER DISEASE IN WOMEN WITH AND WITHOUT HIV
Introduction: Steatotic liver disease (SLD) is highly prevalent in people with HIV (PWH) and is a major cause of morbidity and mortality in this population. However, it remains unclear whether SLD is influenced by HIV infection and whether the clinical management of PWH who have SLD should differ from non-HIV populations. Methods: Liver steatosis and fibrosis were assessed using vibration-controlled transient elastography (VCTE) among 1,580 women (1,117 with HIV; 463 without) enrolled in the Women’s Interagency HIV Study between 2013 and 2018. Steatosis was defined by a controlled attenuation parameter (CAP) ≥248 dB/m, and clinically significant fibrosis by liver stiffness ≥7.1 kPa. Participants were classified according to the AASLD diagnostic algorithm for SLD. Differences in fibrosis prevalence by HIV status were evaluated, and multivariable logistic regression was performed to identify factors associated with SLD and fibrosis, adjusting for age, ethnicity, BMI, alcohol use, diabetes, and smoking. Results: Prevalence of SLD was 740 of 1580 (47%) and did not differ by HIV serostatus. Most SLD was metabolic dysfunction-associated steatotic liver disease (MASLD; 629 of 740 [82%]). HIV infection was associated with higher odds of clinically significant fibrosis only among women with SLD (adjusted OR 1.48, 95% CI 1.01–2.16, p=0.04; HIV*SLD interaction among entire cohort p=0.03). Discussion: In this study, most SLD in women living with HIV is classified as MASLD. HIV infection is associated with higher odds of hepatic fibrosis only among those with SLD. Further work is needed to understand how HIV may potentiate fibrosis in the setting of SLD.
- 4 September 2026
- Published by Wolters Kluwer Health in JAIDS Journal of Acquired Immune Deficiency Syndromes
PREVALENCE AND SEVERITY OF STEATOTIC LIVER DISEASE IN WOMEN WITH AND WITHOUT HIV
Introduction: Steatotic liver disease (SLD) is highly prevalent in people with HIV (PWH) and is a major cause of morbidity and mortality in this population. However, it remains unclear whether SLD is influenced by HIV infection and whether the clinical management of PWH who have SLD should differ from non-HIV populations. Methods: Liver steatosis and fibrosis were assessed using vibration-controlled transient elastography (VCTE) among 1,580 women (1,117 with HIV; 463 without) enrolled in the Women’s Interagency HIV Study between 2013 and 2018. Steatosis was defined by a controlled attenuation parameter (CAP) ≥248 dB/m, and clinically significant fibrosis by liver stiffness ≥7.1 kPa. Participants were classified according to the AASLD diagnostic algorithm for SLD. Differences in fibrosis prevalence by HIV status were evaluated, and multivariable logistic regression was performed to identify factors associated with SLD and fibrosis, adjusting for age, ethnicity, BMI, alcohol use, diabetes, and smoking. Results: Prevalence of SLD was 740 of 1580 (47%) and did not differ by HIV serostatus. Most SLD was metabolic dysfunction-associated steatotic liver disease (MASLD; 629 of 740 [82%]). HIV infection was associated with higher odds of clinically significant fibrosis only among women with SLD (adjusted OR 1.48, 95% CI 1.01–2.16, p=0.04; HIV*SLD interaction among entire cohort p=0.03). Discussion: In this study, most SLD in women living with HIV is classified as MASLD. HIV infection is associated with higher odds of hepatic fibrosis only among those with SLD. Further work is needed to understand how HIV may potentiate fibrosis in the setting of SLD.
- 22 September 2023
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 78 (1) , 122-124
Long-acting Injectable Cabotegravir/Rilpivirine Effective in a Small Patient Cohort With Virologic Failure on Oral Antiretroviral Therapy
We report 12 patients with persistent viremia on oral antiretroviral therapy who were initiated on injectable cabotegravir/rilpivirine (iCAB/RPV) without oral lead-in. All patients achieved viral suppression without any virologic rebound. iCAB/RPV may be considered as an option for patients unable to maintain suppression on oral antiretroviral therapy.
- 22 September 2023
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 78 (1) , 122-124
Long-acting Injectable Cabotegravir/Rilpivirine Effective in a Small Patient Cohort With Virologic Failure on Oral Antiretroviral Therapy
We report 12 patients with persistent viremia on oral antiretroviral therapy who were initiated on injectable cabotegravir/rilpivirine (iCAB/RPV) without oral lead-in. All patients achieved viral suppression without any virologic rebound. iCAB/RPV may be considered as an option for patients unable to maintain suppression on oral antiretroviral therapy.
- 1 March 2021
- Published by Southern Medical Association in Southern Medical Journal
- Vol. 114 (3) , 144-149
Epidemiology, Clinical Features, and Outcomes of Hospitalized Adults with COVID-19: Early Experience from an Academic Medical Center in Mississippi
Objectives To describe the demographics, clinical characteristics, and outcomes of hospitalized adults with coronavirus disease 2019 (COVID-19) in an academic medical center in the southern United States. Methods Retrospective, observational cohort study of all adult patients (18 years and older) consecutively admitted with laboratory-confirmed severe acute respiratory syndrome-coronavirus-2 infection between March 13 and April 25, 2020 at the University of Mississippi Medical Center. All of the patients either survived to hospital discharge or died during hospitalization. Demographics, body mass index, comorbidities, clinical manifestations, and laboratory findings were collected. Patient outcomes (need for invasive mechanical ventilation and in-hospital death) were analyzed. Results One hundred patients were included, 53% of whom were women. Median age was 59 years (interquartile range 44-70) and 66% were younger than 65. Seventy-five percent identified themselves as Black, despite representing 58% of hospitalized patients at our institution in 2019. Common comorbid conditions included hypertension (68%), obesity (65%), and diabetes mellitus (31%). Frequent clinical manifestations included shortness of breath (76%), cough (75%), and fever (64%). Symptoms were present for a median of 7 days (interquartile range 4-7) on presentation. Twenty-four percent of patients required mechanical ventilation and, overall, 19% died (67% of those requiring mechanical ventilation). Eighty-four percent of those who died were Black. On multivariate analysis, ever smoking (odds ratio [OR] 5.9, 95% confidence interval [CI] 1.2-28.6) and history of diabetes mellitus (OR 5.9, 95% CI 1.5-24.3) were associated with mortality, and those admitted from home were less likely to die (vs outside facility, OR 0.2, 95% CI 0.0-0.7). Neither age, sex, race, body mass index, insurance status, nor rural residence was independently associated with mortality. Conclusions Our study adds evidence that Black patients appear to be overrepresented in those hospitalized with and those who die from COVID-19, likely a manifestation of adverse social determinants of health. These findings should help guide preventive interventions targeting groups at higher risk of acquiring and developing severe COVID-19 disease.
- 1 March 2021
- Published by Southern Medical Association in Southern Medical Journal
- Vol. 114 (3) , 144-149
Epidemiology, Clinical Features, and Outcomes of Hospitalized Adults with COVID-19: Early Experience from an Academic Medical Center in Mississippi
Objectives To describe the demographics, clinical characteristics, and outcomes of hospitalized adults with coronavirus disease 2019 (COVID-19) in an academic medical center in the southern United States. Methods Retrospective, observational cohort study of all adult patients (18 years and older) consecutively admitted with laboratory-confirmed severe acute respiratory syndrome-coronavirus-2 infection between March 13 and April 25, 2020 at the University of Mississippi Medical Center. All of the patients either survived to hospital discharge or died during hospitalization. Demographics, body mass index, comorbidities, clinical manifestations, and laboratory findings were collected. Patient outcomes (need for invasive mechanical ventilation and in-hospital death) were analyzed. Results One hundred patients were included, 53% of whom were women. Median age was 59 years (interquartile range 44-70) and 66% were younger than 65. Seventy-five percent identified themselves as Black, despite representing 58% of hospitalized patients at our institution in 2019. Common comorbid conditions included hypertension (68%), obesity (65%), and diabetes mellitus (31%). Frequent clinical manifestations included shortness of breath (76%), cough (75%), and fever (64%). Symptoms were present for a median of 7 days (interquartile range 4-7) on presentation. Twenty-four percent of patients required mechanical ventilation and, overall, 19% died (67% of those requiring mechanical ventilation). Eighty-four percent of those who died were Black. On multivariate analysis, ever smoking (odds ratio [OR] 5.9, 95% confidence interval [CI] 1.2-28.6) and history of diabetes mellitus (OR 5.9, 95% CI 1.5-24.3) were associated with mortality, and those admitted from home were less likely to die (vs outside facility, OR 0.2, 95% CI 0.0-0.7). Neither age, sex, race, body mass index, insurance status, nor rural residence was independently associated with mortality. Conclusions Our study adds evidence that Black patients appear to be overrepresented in those hospitalized with and those who die from COVID-19, likely a manifestation of adverse social determinants of health. These findings should help guide preventive interventions targeting groups at higher risk of acquiring and developing severe COVID-19 disease.
- 1 November 2019
- Published by Wolters Kluwer Health in Journal for Healthcare Quality
- Vol. 41 (6) , e83-e89
An Antimicrobial Stewardship Intervention Improves Adherence to Standard of Care for Staphylococcus aureus Bloodstream Infection
Staphylococcus aureus bloodstream infections (SABSI) are a major cause of morbidity and mortality in the United States, and proper management is important to effect cure and prevent metastatic foci of infection. We aimed to utilize our antimicrobial stewardship program (ASP) to improve practices at a large academic hospital system. Our ASP implemented a SABSI educational campaign directed at the hospital medicine, cardiology, and infectious diseases divisions. A stewardship intervention was then begun for all patients with SABSI recommending infectious diseases consultation, transesophageal echocardiography (TEE), source control, and preliminary antibiotic changes. A retrospective review was performed for all SABSI cases 2 years before and after implementation of the SABSI intervention. Two hundred forty-three cases before intervention and 259 after intervention were included. An increase in obtaining follow-up negative blood cultures (79.8% vs. 89.6%), infectious diseases consultation (52.7% vs. 86.5%), TEE (25.5% vs. 54.8%), beta-lactam switch for methicillin-susceptible S. aureus (55.2% vs. 74.4%), and source control (41.2% vs. 57.9%) was demonstrated. We demonstrated similar durations of bacteremia, length of stay, relapse, mortality, and rates of infective endocarditis. Adherence to standard of care for patients with SABSI can be dramatically improved through provider education, leveraging antimicrobial stewardship resources, and infectious diseases consultation.
- 1 November 2019
- Published by Wolters Kluwer Health in Journal for Healthcare Quality
- Vol. 41 (6) , e83-e89
An Antimicrobial Stewardship Intervention Improves Adherence to Standard of Care for Staphylococcus aureus Bloodstream Infection
Staphylococcus aureus bloodstream infections (SABSI) are a major cause of morbidity and mortality in the United States, and proper management is important to effect cure and prevent metastatic foci of infection. We aimed to utilize our antimicrobial stewardship program (ASP) to improve practices at a large academic hospital system. Our ASP implemented a SABSI educational campaign directed at the hospital medicine, cardiology, and infectious diseases divisions. A stewardship intervention was then begun for all patients with SABSI recommending infectious diseases consultation, transesophageal echocardiography (TEE), source control, and preliminary antibiotic changes. A retrospective review was performed for all SABSI cases 2 years before and after implementation of the SABSI intervention. Two hundred forty-three cases before intervention and 259 after intervention were included. An increase in obtaining follow-up negative blood cultures (79.8% vs. 89.6%), infectious diseases consultation (52.7% vs. 86.5%), TEE (25.5% vs. 54.8%), beta-lactam switch for methicillin-susceptible S. aureus (55.2% vs. 74.4%), and source control (41.2% vs. 57.9%) was demonstrated. We demonstrated similar durations of bacteremia, length of stay, relapse, mortality, and rates of infective endocarditis. Adherence to standard of care for patients with SABSI can be dramatically improved through provider education, leveraging antimicrobial stewardship resources, and infectious diseases consultation.
- Open Access
- 10 June 2019
- Published by JMIR Publications Inc. in JMIR Research Protocols
- Vol. 8 (6) , e13982
An Electronic Pre-Exposure Prophylaxis Initiation and Maintenance Home Care System for Nonurban Young Men Who Have Sex With Men: Protocol for a Randomized Controlled Trial
Pre-exposure prophylaxis (PrEP) is highly efficacious for preventing HIV but has not yet been brought to scale among at-risk persons. In several clinical trials in urban areas, technology-based interventions have shown a positive impact on PrEP adherence. In rural and small-town areas in the United States, which often do not have geographically proximal access to PrEP providers, additional support may be needed. This may be particularly true for younger persons who are more likely to face multiple barriers to accessing PrEP services. Home-based care, accomplished through a tailored mobile phone app, specimen self-collection (SSC), and interactive video consultations, could increase both PrEP initiation and persistence in care. The goal of this study is to assess the initiation and persistence in PrEP care for those randomized to a home-care intervention (electronic PrEP, ePrEP) relative to those assigned to the standard of care (control) condition. We will conduct additional assessments, including quantitative and qualitative analyses, to contextualize trial results and facilitate scale-up. This 2-arm, randomized controlled trial will enroll young men who have sex with men (YMSM) aged between 18 and 24 years from rural areas of Georgia, Mississippi, and North Carolina. The trial will seek to recruit a diverse sample, targeting 50% participation among highly impacted groups of black or Latino men who have sex with men. Intervention participants will receive a study app that incorporates a messaging platform, a scheduling and milestone-based tracking system for PrEP care progress, electronic behavioral surveys, and interactive video consultations with a clinician. Complemented by SSC kits mailed to laboratories for standard PrEP-related monitoring, the ePrEP system will allow participants to access PrEP care without leaving their homes. YMSM randomized to the control condition will receive a listing of nearest local PrEP providers to receive standard PrEP care. Both groups will complete quarterly electronic surveys. The primary outcome, assessed at 6 and 12 months after randomization, will be the difference in the proportion of intervention versus control participants that achieve protective levels of the active metabolite of oral PrEP (tenofovir diphosphate in dried blood spots). Enrollment will begin in May 2019, with study completion in 2022. This trial will determine whether home PrEP care provided through an app-based platform is an efficacious means of expanding access to PrEP care for a diverse group of YMSM in rural and small-town areas of the United States. ClinicalTrials.gov NCT03729570; https://clinicaltrials.gov/ct2/show/NCT03729570 (Archived by WebCite at http://www.webcitation.org/78RE2Qizf). PRR1-10.2196/13982.
- 10 June 2019
- Published by JMIR Publications Inc. in JMIR Research Protocols
- Vol. 8 (6) , e13982
Open AccessAn Electronic Pre-Exposure Prophylaxis Initiation and Maintenance Home Care System for Nonurban Young Men Who Have Sex With Men: Protocol for a Randomized Controlled Trial
Pre-exposure prophylaxis (PrEP) is highly efficacious for preventing HIV but has not yet been brought to scale among at-risk persons. In several clinical trials in urban areas, technology-based interventions have shown a positive impact on PrEP adherence. In rural and small-town areas in the United States, which often do not have geographically proximal access to PrEP providers, additional support may be needed. This may be particularly true for younger persons who are more likely to face multiple barriers to accessing PrEP services. Home-based care, accomplished through a tailored mobile phone app, specimen self-collection (SSC), and interactive video consultations, could increase both PrEP initiation and persistence in care. The goal of this study is to assess the initiation and persistence in PrEP care for those randomized to a home-care intervention (electronic PrEP, ePrEP) relative to those assigned to the standard of care (control) condition. We will conduct additional assessments, including quantitative and qualitative analyses, to contextualize trial results and facilitate scale-up. This 2-arm, randomized controlled trial will enroll young men who have sex with men (YMSM) aged between 18 and 24 years from rural areas of Georgia, Mississippi, and North Carolina. The trial will seek to recruit a diverse sample, targeting 50% participation among highly impacted groups of black or Latino men who have sex with men. Intervention participants will receive a study app that incorporates a messaging platform, a scheduling and milestone-based tracking system for PrEP care progress, electronic behavioral surveys, and interactive video consultations with a clinician. Complemented by SSC kits mailed to laboratories for standard PrEP-related monitoring, the ePrEP system will allow participants to access PrEP care without leaving their homes. YMSM randomized to the control condition will receive a listing of nearest local PrEP providers to receive standard PrEP care. Both groups will complete quarterly electronic surveys. The primary outcome, assessed at 6 and 12 months after randomization, will be the difference in the proportion of intervention versus control participants that achieve protective levels of the active metabolite of oral PrEP (tenofovir diphosphate in dried blood spots). Enrollment will begin in May 2019, with study completion in 2022. This trial will determine whether home PrEP care provided through an app-based platform is an efficacious means of expanding access to PrEP care for a diverse group of YMSM in rural and small-town areas of the United States. ClinicalTrials.gov NCT03729570; https://clinicaltrials.gov/ct2/show/NCT03729570 (Archived by WebCite at http://www.webcitation.org/78RE2Qizf). PRR1-10.2196/13982.
- 23 September 2016
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 63 (12) , 1678-1679
HIV Medicine Residency Training: Experience From Mississippi
- 23 September 2016
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 63 (12) , 1678-1679
HIV Medicine Residency Training: Experience From Mississippi
- 1 June 2015
- Vol. 56 (6) , 156-60
Pre- and Post-Exposure Prophylaxis and the Changing Paradigm of HIV Prevention.
- 1 June 2015
- Vol. 56 (6) , 156-60
Pre- and Post-Exposure Prophylaxis and the Changing Paradigm of HIV Prevention.