Digital Commons Network^™

Identifying Areas With Disproportionate Local Health Department Services Relative To Opioid Overdose, Hiv And Hepatitis C Diagnosis Rates: A Study Of Rural Illinois, Collen Mcluckie, Mai T. Pho, Kaitlin Ellis, Livia Navon, Kelly Walblay, Wiley D. Jenkins, Christofer Rodriguez, Marynia A. Kolak, Yen-Tyng Chen, John A. Schneider, Whitney E. Zahnd

Faculty Publications

Background: U.S. rural populations have been disproportionately affected by the syndemic of opioid-use disorder (OUD) and the associated increase in overdoses and risk of hepatitis C virus (HCV) and human immunodeficiency virus (HIV) transmission. Local health departments (LHDs) can play a critical role in the response to this syndemic. We utilized two geospatial approaches to identify areas of discordance between LHD service availability and disease burden to inform service prioritization in rural settings.Methods: We surveyed rural Illinois LHDs to assess their OUD-related services, and calculated county-level opioid overdose, HIV, and hepatitis C diagnosis rates. Bivariate choropleth maps were created to …

Food Insecurity And Violence In A Prospective Cohort Of Women At Risk For Or Living With Hiv In The U.S., Amy A. Conroy, Mardge H. Cohen, Edward A. Frongillo Jr., Alexander C. Tsai, Tracey E. Wilson, Eryka L. Wentz, Adaora A. Adimora, Daniel Merenstein, Ighovwerha Ofotokun, Lisa Metsch, Mirjam-Colette Kempf, Adebola Adedimeji, Janet M. Turan, Phyllis C. Tien, Sheri D. Weiser

Faculty Publications

Background Food insecurity and violence are two major public health issues facing U.S. women. The link between food insecurity and violence has received little attention, particularly regarding the temporal ordering of events. The present study used data from the Women’s Interagency Human Immunodeficiency Virus Study to investigate the longitudinal association of food insecurity and violence in a cohort of women at risk for or living with HIV.

Methods Study participants completed six assessments from 2013–16 on food insecurity (operationalized as marginal, low, and very low food security) and violence (sexual or physical, and psychological). We used multi-level logistic regression, controlling …

Coupling Computational Fluid Dynamics Simulations And Statistical Moments For Designing Healthy Indoor Spaces, Shamia Hoque, Firoza B. Omar

Faculty Publications

Cross-contamination between occupants in an indoor space may occur due to transfer of infectious aerosols. Computational fluid dynamics (CFD) provides detailed insight into particle transport in indoor spaces. However, such simulations are site-specific. This study couples CFD with statistical moments and establishes a framework that transitions site-specific results to generating guidelines for designing “healthy” indoor spaces. Eighteen cases were simulated, and three parameters were assessed: inlet/outlet location, air changes per hour, and the presence/absence of desks. Aerosol release due to a simulated “sneeze” in a two-dimensional ventilated space was applied as a test case. Mean, standard deviation, and skewness of …

Utility Of Combination Antimicrobial Therapy In Adults With Bloodstream Infections Due To Enterobacteriaceae And Non-Fermenting Gram-Negative Bacilli Based On In Vitro Analysis At Two Community Hospitals, Rachel Foster, Casey Troficanto, P. Brandon Bookstaver, Joseph Kohn, Julie Ann Justo, Majdi Al-Hasan

Faculty Publications

This study examined the utility of combination therapy for bloodstream isolates of Enterobacteriaceae and non-fermenting Gram-negative bacilli (NFGN) from adults at two community hospitals from January 2010 through to June 2015. Changes to in vitro antimicrobial susceptibilities by adding ciprofloxacin or gentamicin to third-generation cephalosporins (3GC) were examined overall and in patients with risk factors for 3GC resistance. Overall ceftriaxone susceptibility among Enterobacteriaceae was 996/1063 (94%) and 247/295 (84%) in patients with 3GC resistance risk factors. Susceptibilities increased marginally by adding ciprofloxacin or gentamicin (mean difference 2.4% (95% CI 1.5, 3.4) and 3.0% (95% CI 2.0, 4.0), respectively, overall and …

Knowledge And Awareness Of Human Papillomavirus Among College Students In South Carolina, Salima Kasymova, Sayward Harrison, Caroline Pascal

Faculty Publications

Despite the existence of a safe and effective vaccine, human papillomavirus (HPV) remains prevalent in the United States, with late adolescence and early adulthood being periods of increased risk. Thus, targeting college-aged individuals for HPV prevention and vaccination promotion is critical—particularly in regions such as the Deep South where vaccination rates remain low. This study sought to examine awareness and knowledge of HPV as well as experiences and attitudes regarding HPV vaccination among college students in the Deep South. Specifically, we completed a cross-sectional survey of 256 undergraduate students from a large public university in South Carolina. Although a majority …

Exploring Legal And Policy Responses To Opioids: America's Worst Public Health Emergency, James G. Hodge Jr., Chelsea Gulinson, Leila F. S. Barraza, Walter G. Johnson, Drew Hensley, Haley R. Augur

South Carolina Law Review

No abstract provided.

Administering Housing Law As Health Care: Attorneys As Healthcare Providers, Frank Griffin

South Carolina Law Review

No abstract provided.

Resveratrol Attenuates Allergic Asthma And Associated Inflammation In The Lungs Through Regulation Of Mirna-34a That Targets Foxp3 In Mice, Esraah Alharris, Hasan Alghetaa, Ratanesh K. Seth, Saurabh Chatterjee, Narendra P. Singh, Mitzi Nagarkatti, Prakash Nagarkatti

Faculty Publications

Asthma is a chronic inflammatory disease of airways mediated by T-helper 2 (Th2) cells involving complex signaling pathways. Although resveratrol has previously been shown to attenuate allergic asthma, the role of miRNA in this process has not been studied. We investigated the effect of resveratrol on ovalbumin-induced experimental allergic asthma in mice. To that end, BALB/c mice were immunized with ovalbumin (OVA) intraperitoneally followed by oral gavage of vehicle (OVA-veh) or resveratrol (100 mg/kg body) (OVA-res). On day 7, the experimental groups received intranasal challenge of OVA followed by 7 days of additional oral gavage of vehicle or resveratrol. At …

Bloodstream Infection Due To Piperacillin/Tazobactam Non-Susceptible, Cephalosporin Susceptible Escherichia Coli: A Missed Opportunity For De-Escalation Of Therapy, Leah Carlisle, Julie Ann Justo, Majdi N. Al-Hasan

Faculty Publications

An increasing number of reports describing Escherichia coli isolates with piperacillin/tazobactam resistance, despite retained cephalosporin susceptibility, suggest further emergence of this phenotypic resistance pattern. In this report, a patient with metastatic breast cancer presented to medical care after two days of chills, nausea, vomiting, reduced oral intake, and generalized weakness. Blood and urine cultures grew E. coli as identified by rapid diagnostics multiplex PCR and MALDI-TOF, respectively. The patient continued to manifest signs of sepsis with hypotension and tachypnea during the first three days of hospitalization despite empirical antimicrobial therapy with intravenous piperacillin/tazobactam. After in vitro antimicrobial susceptibility testing demonstrated …

Multidisciplinary Authorship Among Infectious Diseases Society Of America Clinical Practice Guidelines: Examining The Contributions Of Infectious Diseases Pharmacists, Lauren K. Freeman, Jasmine N. Lindsay, Sarah Elizabeth Davis, Brian F. Norman, April W. Thompkins, Vera P. Luther, Christopher A. Ohl, P Brandon Bookstaver

Faculty Publications

We describe the proportion of pharmacist representation among current and corresponding prior editions of Infectious Diseases Society of America (IDSA) clinical practice guidelines (CPGs). Pharmacist representation was 13% and 21% in previous and current editions, respectively, increasing significantly since 2011. We advocate for continued collaborations between IDSA and pharmacy organizations to enhance multidisciplinary representation in CPGs.

Influenza Virus Infectivity Is Retained In Aerosols And Droplets Independent Of Relative Humidity, Karen A. Kormuth, Kaisen Lin, Aaron J. Prussin, Eric P. Vejerano, Andrea J. Tiwari, Steve S. Cox, Micheal M. Myerburg, Seema S. Lakdawala, Linsey C. Marr

Faculty Publications

Pandemic and seasonal influenza viruses can be transmitted through aerosols and droplets, in which viruses must remain stable and infectious across a wide range of environmental conditions. Using humidity-controlled chambers, we studied the impact of relative humidity on the stability of 2009 pandemic influenza A(H1N1) virus in suspended aerosols and stationary droplets. Contrary to the prevailing paradigm that humidity modulates the stability of respiratory viruses in aerosols, we found that viruses supplemented with material from the apical surface of differentiated primary human airway epithelial cells remained equally infectious for 1 hour at all relative humidities tested. This sustained infectivity was …

Evaluation Of Self-Report Adherence Measures And Their Associations With Detectable Viral Load Among People Living With Hiv (Plhiv) In China, Wendi Da, Xiaoming Li Ph.D., Shan Qiao Ph.D., Yuejiao Zhou, Zhiyong Shen

Faculty Publications

Objectives Self-report antiretroviral therapy (ART) adherence has been consistently associated with clinical outcomes. This study aims to compare the accuracy of self-report ART adherence measures with varying recall timeframes or item contents to predict virological response.

Methods Data from a cross-sectional study among 2146 participants on ART in Guangxi, China were used. Detectable viral load was defined as viral load > 50 copies/ml. Adherence was measured using the number of days on which all doses were taken in the past month (i.e., the “one-month days taken” measure), the number of days on which any dose was missed in the past month …

Design, Development And Construct Validation Of The Children’S Dietary Inflammatory Index, Samira Khan, Micheal D. Wirth, Andrew Ortaglia, Christian R. Alvarado, Nitin Shivappa, Thomas Hurley, James R. Hébert

Faculty Publications

Objective: To design and validate a literature-derived, population-based Children’s Dietary Inflammatory Index (C-DII)TM. Design: The C-DII was developed based on a review of literature through 2010. Dietary data obtained from children in 16 different countries were used to create a reference database for computing C-DII scores based on consumption of macronutrients, vitamins, minerals, and whole foods. Construct validation was performed using quantile regression to assess the association between C-reactive protein (CRP) concentrations and C-DII scores. Data Sources: All data used for construct validation were obtained from children between six and 14 years of age (n = 3300) who participated in …

Design, Development And Construct Validation Of The Children’S, Samira Khan, Michael D. Wirth, Andrew Ortaglia, Christian R. Alvarado, Nitin Shivappa, Thomas Hurley, James R. Hébert

Faculty Publications

Objective: To design and validate a literature-derived, population-based Children’s Dietary Inflammatory Index (C-DII)^TM. Design: The C-DII was developed based on a review of literature through 2010. Dietary data obtained from children in 16 different countries were used to create a reference database for computing C-DII scores based on consumption of macronutrients, vitamins, minerals, and whole foods. Construct validation was performed using quantile regression to assess the association between C-reactive protein (CRP) concentrations and C-DII scores. Data Sources: All data used for construct validation were obtained from children between six and 14 years of age (n = 3300) who …

Identification Of Coliphages In The Aviary At Brookgreen Gardens And The Factors That Might Influence Coliphage Population Dynamics In This Cypress Swamp Environment, Olivia Shirley, Lisa Pieterse, Paul E. Richardson

Journal of the South Carolina Academy of Science

It has been understood that the presence of coliphages (bacteriophages specific for E. coli) in water is an indirect measurement of fecal contamination. Bacteriophages have been suggested to hold an important role in regulating the bacterial population. This pilot study analyzes the relationship between the presence of coliphages in the water in the aviary at Brookgreen Gardens and how environmental factors such as temperature, pH, and turbidity affect the presence of these viruses over the time period of three months (June 2017 through August 2017). Coliphages found in volary water sources were speculated to be deposited directly by birds that …

Investigating The Lytic Staphylococcus Aureus Bacteriophage Reservoir Amongst A South Carolina University Population: Discovery, Characterization, And Identification Of A Potential Bacteriophage Treatment For Methicillin-Resistant Staphylococcus Aureus, Lisa Pieterse, Amy Powers, Derek Pride, Lisha Van Onselen, Giovanna E. Leone, Paul E. Richardson

Journal of the South Carolina Academy of Science

Bacteriophages are viruses that only infect bacterial cells and can be used to treat antibiotic resistant bacterial infections. This study focused on the isolation and characterization of bacteriophages lytic to Staphylococcus aureus at Coastal Carolina University (CCU) in Conway, South Carolina, as a means to isolate bacteriophages that can potentially be used to treat methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant S. aureus variant. From 2014 to 2018, collection of ear and nose samples from 225 randomly selected CCU volunteers was conducted. Filter sterilization, amplification, microbial tests, and PCR analyses were performed in order to identify and characterize bacteriophages. Coliphage populations …

Impact Of Outpatient Vs Inpatient Absssi Treatment On Outcomes: A Retrospective Observational Analysis Of Medical Charts Across Us Emergency Departments, P Brandon Bookstaver, Timothy C. Jenkins, Edward Stenehjem, Shira Doron, Jack Brown, Shannon H. Goldwater, Carlos Lopes, Angela Haynes, Chuka Udeze, Yifan Mo, Patrick Gillard, Yan Liu, Katelyn Keyloun

Faculty Publications

Background: The objective of this study was to characterize treatment of patients with acute bacterial skin and skin structure infections (ABSSSIs) and describe the association between hospital admission and emergency department (ED) visits or readmissions within 30 days after initial episode of care (IEC). Methods: This was a retrospective, observational, cohort study of adults with ABSSSI who presented to an ED between July 1, 2012, and June 30, 2013. Patient, health care facility, and treatment characteristics, including unplanned ED visits or readmissions, were obtained through manual chart review and abstraction. Adjusted logistic regression analysis examined likelihood of all-cause unplanned ED …

Serum Proteomics In African American Female Patients With Irritable Bowel Syndrome: An Exploratory Study, Kristen R. Weaver-Toedtman Phd, Acnp, Anp, Gail D.Eramo Melkus, Jason Fletcher, Wendy A. Henderson

Publications

Background Sex and subtype differences within patients with irritable bowel syndrome (IBS) complicate the understanding of disorder pathogenesis and hinder the design of efficacious, therapeutic interventions. Objectives The aims of this study were to harness the power of shotgun proteomic analysis, identify circulating proteins that differentiate African American female patients with IBS from healthy controls (HC), and gain biological insight on symptomatology. Methods Serum proteome analysis was performed upon a cohort of overweight, African American female participants with constipation predominant IBS symptoms (n = 5) and HC (n = 5), matched on age, sex, years of education, body mass index, …

Optimization Of Microfluidic Chip Fabrication Via Femtosecond Laser Ablation, Kenneth Aycock

Senior Theses

Microfluidic devices have become staple tools in biomedical research and have a promising future as low cost, point-of-care (POC) diagnostic devices. Despite the advancements in microfluidic device technology, the manipulation and fabrication of these systems can be tedious and expensive. Repeatable techniques in which computer-aided designs are translated into microfluidic systems in a matter of minutes are highly desirable both for researchers and manufacturers. Laser ablation of tape substrates has shown promise in producing cost-effective, rapidly manipulable devices, but the work done thus far has utilized continuous wave lasers that perform suboptimally due to the relatively short wavelengths used and …

Turning Points: Stories Of Passion And Leadership In The South Carolina Midlands, Louise White, Philip Richardson

Senior Theses

“Turning Points” captures the inflection points that define local community leaders’ identities and passions, whether life-altering experiences or fleeting moments of realization. Through examining the evolving life stories of community leaders in the South Carolina Midlands, this creative project explores how turning point experiences impact people’s leadership and personal development and profiles these stories in a photo book to effectively share these stories with a broad audience. Preliminary research was conducted on identity development, turning points, and emotional intelligence in relation to leadership theory and practice. This research informed interview questions that guided conversations with nineteen community leaders in the …

Evaluation Of Pharmacy Students’ Tendency To Self-Medicate, Rebekah Lee Crandall, Danielle O'Neal

Senior Theses

Objective: To investigate whether the tendency to self-medicate increases as students progress though the pharmacy curriculum.

Design: An online survey was administered through Survey Monkey by a link sent to the email addresses of students who attended the South Carolina College of Pharmacy/ University of South Carolina College of Pharmacy (SCCP/USC-COP) during the 2017-2018 school year.

Methods: Self-medication was defined as the use of over-the-counter (OTC) medications, medications prescribed to another person, and recreational (i.e. alcohol, tobacco) or illicit substances for therapeutic purposes. The primary outcome was the likelihood of each class of pharmacy students to self-medicate based on a …

Integrating Nutrition Into Health Systems At Community Level:Impact Evaluation Of The Community‐Based Maternal Andneonatal Health And Nutrition Projects In Ethiopia, Kenya, And Senegal, Jacqueline K. Kung'u, Richard Pendame, Mame Bineta Ndiaye, Mulusew Gerbaba, Sophie Ochola, Adama Faye, Sulochana Basnet, Edward A. Frongillo Jr., Sara Wuehler, Luz Maria De‐Regil

Faculty Publications

Maternal undernutrition and mortality remain high in several African countries. Key nutrition andhealth interventions improve maternal and birth outcomes. Evidence is scarce on how tostrengthen health systems to ensure pregnant women and newborns are reached with theseinterventions. We conducted three quasi‐experimental nonrandomized Community BasedMaternal and Neonatal Health and Nutrition projects in regions of Ethiopia, Senegal, and Kenyato demonstrate how proven nutrition interventions could be integrated into health programs toimprove knowledge and practices during pregnancy, birth, and postpartum. We evaluated impacton knowledge and practices related to maternal and neonatal care using logistic regression andrepeated‐measures models with districts as a fixed variable …

Physico-Chemical Characteristics Of Evaporating Respiratory Fluid Droplets, Eric P. Vejerano, Linsey C. Marr

Faculty Publications

The detailed physico-chemical characteristics of respiratory droplets in ambient air, where they are subject to evaporation, are poorly understood. Changes in the concentration and phase of major components in a droplet—salt (NaCl), protein (mucin) and surfactant (dipalmitoylphosphatidylcholine)—may affect the viability of any pathogens contained within it and thus may affect the efficiency of transmission of infectious disease by droplets and aerosols. The objective of this study is to investigate the effect of relative humidity (RH) on the physico-chemical characteristics of evaporating droplets of model respiratory fluids. We labelled these components in model respiratory fluids and observed evaporating droplets suspended on …

Sociocultural And Health System Factors Associated With Mortality Among Febrile Inpatients In Tanzania: A Prospective Social Biopsy Cohort Study, Michael E. Snavely, Michael J. Maze, Charles Muiruri, Lilian Ngowi, Flora Mboya, Julia Beamesderfer, Glory F. Makupa, Anthon G. Mwingwa, Bingileki F. Lwezaula, Blandina T. Mmbaga, Venance P. Maro, John A. Crump, Jan Ostermann, Matthew P. Rubach

Faculty Publications

Introduction Communicable diseases are the leading causes of death in Tanzania despite the existence of effective treatment tools. We aimed to assess the sociocultural and health system factors associated with mortality from febrile illness in northern Tanzania.

Methods We interviewed febrile inpatients to determine prevalence of barriers in seeking or receiving care and grouped these barriers using the Three Delays model (delays at home, in transport and at healthcare facilities). We assessed 6-week mortality and, after matching on age, gender and severity of illness, measured the association between delays and mortality using conditional logistic regression.

Results We enrolled 475 children, …

Facilitators And Barriers For Hiv-Testing In Zambia: A Systematic Review Of Multi-Level Factors, Shan Qiao Ph.D., Yao Zhang, Xiaoming Li Ph.D., J. Anitha Menon

Faculty Publications

It was estimated that 1.2 million people live with HIV/AIDS in Zambia by 2015. Zambia has developed and implemented diverse programs to reduce the prevalence in the country. HIVtesting is a critical step in HIV treatment and prevention, especially among all the key populations. However, there is no systematic review so far to demonstrate the trend of HIV-testing studies in Zambia since 1990s or synthesis the key factors that associated with HIVtesting practices in the country. Therefore, this study conducted a systematic review to search all English literature published prior to November 2016 in six electronic databases and retrieved 32 …

Experimental Evidence Of A Pathogen Invasion Threshold, Tad Dallas, Martin Krkošek, John M. Drake

Faculty Publications

Host density thresholds to pathogen invasion separate regions of parameter space corresponding to endemic and disease-free states. The host density threshold is a central concept in theoretical epidemiology and a common target of human and wildlife disease control programmes, but there is mixed evidence supporting the existence of thresholds, especially in wildlife populations or for pathogens with complex transmission modes (e.g. environmental transmission). Here, we demonstrate the existence of a host density threshold for an environmentally transmitted pathogen by combining an epidemiological model with a microcosm experiment. Experimental epidemics consisted of replicate populations of naive crustacean zooplankton (Daphnia dentifera …

Serving Up Allergy Labeling: Mitigating Food Allergen Risks In Restaurants, Marie C. Boyd

Faculty Publications

Allergens in restaurant food cause many allergic reactions and deaths. Yet no federal, state, or local law adequately protects people from these harms. Although federal law requires the labeling of “major food allergens” in packaged food, there are no allergen labeling requirements for restaurant-type food. In addition, existing food safety requirements for restaurants are inadequate to prevent allergen cross contact.

The existing legal scholarship on food allergens in restaurants is limited. Much of the legal scholarship on labeling in restaurants focuses on menu labeling — the provision of calorie and other nutrition information to combat obesity. The requirements of Section …

Ontology-Guided Pre-Release Inference Disruption, Mark Stephen Daniels

Theses and Dissertations

We investigate privacy violations occurring when non-confidential patient data is combined with medical domain ontologies to disclose a patient’s protected health information (PHI). We propose a framework that detects privacy violations and eliminates undesired inferences. Our inference channel removal process is based on controlling the release of the data items that lead to undesired inferences. These data items are either blocked from release or generalized to eliminate the disclosure of the PHI. We show that our method is sound and complete. Soundness means the only inference paths generated logically follow from released data and corresponding domain knowledge. Completeness means we …

Assessing Exposure To Occupants In An Indoor Space Due To Expirated Aerosols: Application Of Computational Fluid Dynamics, Firoza Binte Omar

Theses and Dissertations

Indoor environment is an important issue for the well-being of the society. In the United States more than 90% people spend their time indoor, indoor air pollution is more culpable than the pollution outside air. Two third of US businesses lose more than $100,000 per year due to workplace related illness. The trend of sharing the work space has an impact on total sick leaves in a company. Infectious particles released by a flu sufferer’s sneezing, coughing or even laughing can be a vital source. A thorough analysis on infectious particles’ transmission and air flow of the space can provide …

Adjusting For Mis-Reporting In Count Data, Gelareh Rahimighazikalayeh

Theses and Dissertations

Any counting system is prone to recording errors including underreporting and overreporting. Ignoring the misreporting pattern in count data can give rise to bias in the estimation of model parameters. Accordingly, Poisson, negative binomial and generalized Poisson regression have been expanded in some instances to capture reporting biases. However, to our knowledge, no program has been developed to allow users to apply all of these models when needed. In the first part of the dissertation, we review the available models for underreported counts and develop a Stata command to estimate Poisson, negative binomial and generalized Poisson regression models for underreported …