COVID-19 Commons^™

Identification Of And Mechanistic Insights Into Sars-Cov-2 Main Protease Non-Covalent Inhibitors: An In-Silico Study, Jian-Xin Shen, Wen-Wen Du, Yuan-Ling Xia, Zhi-Bi Zhang, Ze-Fen Yu, Yun-Xin Fu, Shu-Qun Liu

Faculty, Staff and Student Publications

The indispensable role of the SARS-CoV-2 main protease (Mpro) in the viral replication cycle and its dissimilarity to human proteases make Mpro a promising drug target. In order to identify the non-covalent Mpro inhibitors, we performed a comprehensive study using a combined computational strategy. We first screened the ZINC purchasable compound database using the pharmacophore model generated from the reference crystal structure of Mpro complexed with the inhibitor ML188. The hit compounds were then filtered by molecular docking and predicted parameters of drug-likeness and pharmacokinetics. The final molecular dynamics (MD) simulations identified three effective candidate inhibitors (ECIs) capable of maintaining …

Optimized Workplace Risk Mitigation Measures For Sars-Cov-2 In 2022, Rowland Pettit, Bo Peng, Patrick Yu, Peter G Matos, Alexander L Greninger, Julie Mccashin, Christopher Ian Amos

Faculty, Staff and Students Publications

596 million SARS-CoV-2 cases have been reported and over 12 billion vaccine doses have been administered. As vaccination rates increase, a gap in knowledge exists regarding appropriate thresholds for escalation and de-escalation of workplace COVID-19 preventative measures. We conducted 133,056 simulation experiments, evaluating the spread of SARS-CoV-2 virus in hypothesized working environments subject to COVID-19 infections from the community. We tested the rates of workplace-acquired infections based on applied isolation strategies, community infection rates, methods and scales of testing, non-pharmaceutical interventions, variant predominance, vaccination coverages, and vaccination efficacies. When 75% of a workforce is vaccinated with a 70% efficacious vaccine …

Mortality And Major Adverse Cardiovascular Events In Hospitalized Patients With Atrial Fibrillation With Covid-19, Lucas Wang, Lawrence Hoang, Kristopher Aten, Mujahed Abualfoul, Victor Canela, Sri Prathivada, Michael Vu, Yi Zhao, Manavjot Sidhu

Faculty, Staff and Student Publications

COVID-19 results in increased incidence of cardiac arrhythmias, including atrial fibrillation (AF). However, little is known about the combined effect of AF and COVID-19 on patient outcomes. This study aimed to determine if AF, specifically new-onset AF (NOAF), is associated with increased risk of mortality and major adverse cardiovascular events (MACEs) in hospitalized patients with COVID-19. This multicenter retrospective analysis identified 2,732 patients with COVID-19 admitted between March and December 2020. Data points were manually reviewed in the patients' electronic health records. Multivariate logistic regression was used to assess if AF was associated with death or MACE. Patients with AF …

An Epithelial-Immune Circuit Amplifies Inflammasome And Il-6 Responses To Sars-Cov-2, Katherine C Barnett, Yuying Xie, Takanori Asakura, Dingka Song, Kaixin Liang, Sharon A Taft-Benz, Haitao Guo, Shuangshuang Yang, Kenichi Okuda, Rodney C Gilmore, Jennifer F Loome, Thomas H Oguin Iii, Gregory D Sempowski, Scott H Randell, Mark T Heise, Yu Leo Lei, Richard C Boucher, Jenny P-Y Ting

Faculty, Staff and Student Publications

Elevated levels of cytokines IL-1β and IL-6 are associated with severe COVID-19. Investigating the underlying mechanisms, we find that while primary human airway epithelia (HAE) have functional inflammasomes and support SARS-CoV-2 replication, they are not the source of IL-1β released upon infection. In leukocytes, the SARS-CoV-2 E protein upregulates inflammasome gene transcription via TLR2 to prime, but not activate, inflammasomes. SARS-CoV-2-infected HAE supply a second signal, which includes genomic and mitochondrial DNA, to stimulate leukocyte IL-1β release. Nuclease treatment, STING, and caspase-1 inhibition but not NLRP3 inhibition blocked leukocyte IL-1β release. After release, IL-1β stimulates IL-6 secretion from HAE. Therefore, …

Severe Acute Respiratory Syndrome Coronavirus 2 (Sars-Cov-2) Testing And Detection During Peripartum Hospitalizations Among A Multicenter Cohort Of Pregnant Persons: March 2020-February 2021, Miranda J Delahoy, Flor Munoz, De-Kun Li, Carmen Sofia Arriola, Nanette Lee Bond, Michael Daugherty, Jeannette Ferber, Nickolas Ferguson, Louise Hadden, Jillian T Henderson, Stephanie A Irving, Mary Juergens, Venkatesh Kancharla, Mara Greenberg, Roxana Odouli, Gabriella Newes-Adeyi, Erin G Nicholson, Lawrence Reichle, Momodou Sanyang, Margaret Snead, Fatimah S Dawood, Allison L Naleway

Faculty, Staff and Students Publications

BACKGROUND: Identifying severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections during peripartum hospitalizations is important to guide care, implement prevention measures, and understand infection burden.

METHODS: This cross-sectional analysis used electronic health record data from hospitalizations during which pregnancies ended (peripartum hospitalizations) among a cohort of pregnant persons at 3 US integrated healthcare networks (sites 1-3). Maternal demographic, medical encounter, SARS-CoV-2 testing, and pregnancy and neonatal outcome information was extracted for persons with estimated delivery and pregnancy end dates during March 2020-February 2021 and ≥1 antenatal care record. Site-stratified multivariable logistic regression was used to identify factors associated with testing …

How Much Did It Cost To Develop And Implement An Ehealth Intervention For A Minority Children Population That Overlapped With The Covid-19 Pandemic?, Alexandra Monashefsky, Dar Alon, Tom Baranowski, Tiago V Barreira, Kelly A Chiu, Amy Fleischman, Melanie C Green, Shirley Huang, Ronald C Samuels, Caio Victor Sousa, Debbe Thompson, Amy S Lu

Children’s Nutrition Research Center Staff Publications

Background: eHealth interventions using active video games (AVGs) offer an alternative method to help children exercise, especially during a pandemic where options are limited. There is limited data on costs associated with developing and implementing such interventions.

Objectives: We quantified the costs of delivering an eHealth RCT intervention among minority children during COVID-19.

Methods: We categorized the total trial cost into five subcategories: intervention material development, advertising and recruitment, intervention delivery, personnel salaries, and COVID-19-related equipment costs.

Results: The total RCT cost was $1,927,807 (Direct: $1,227,903; Indirect: $699,904) with three visits required for each participant. The average cost per participant …

How Much Did It Cost To Develop And Implement An Ehealth Intervention For A Minority Children Population That Overlapped With The Covid-19 Pandemic?, Alexandra Monashefsky, Dar Alon, Tom Baranowski, Tiago V Barreira, Kelly A Chiu, Amy Fleischman, Melanie C Green, Shirley Huang, Ronald C Samuels, Caio Victor Sousa, Debbe Thompson, Amy S Lu

Children’s Nutrition Research Center Staff Publications

Background: eHealth interventions using active video games (AVGs) offer an alternative method to help children exercise, especially during a pandemic where options are limited. There is limited data on costs associated with developing and implementing such interventions.

Objectives: We quantified the costs of delivering an eHealth RCT intervention among minority children during COVID-19.

Methods: We categorized the total trial cost into five subcategories: intervention material development, advertising and recruitment, intervention delivery, personnel salaries, and COVID-19-related equipment costs.

Results: The total RCT cost was $1,927,807 (Direct: $1,227,903; Indirect: $699,904) with three visits required for each participant. The average cost per participant …

Conducting Clinical Genomics Research During The Covid-19 Pandemic: Lessons Learned From The Cser Consortium Experience, Stephanie A Kraft, Heidi Russell, Jeannette T Bensen, Katherine E Bonini, Jill O Robinson, Nuriye Sahin-Hodoglugil, Kathleen Renna, Lucia A Hindorff, Dave Kaufman, Carol R Horowitz, Margaret Waltz, Jamilyn M Zepp, Sara J Knight

Faculty, Staff and Student Publications

Clinical research studies have navigated many changes throughout the COVID-19 pandemic. We sought to describe the pandemic's impact on research operations in the context of a clinical genomics research consortium that aimed to enroll a majority of participants from underrepresented populations. We interviewed (July to November 2020) and surveyed (May to August 2021) representatives of six projects in the Clinical Sequencing Evidence-Generating Research (CSER) consortium, which studies the implementation of genome sequencing in the clinical care of patients from populations that are underrepresented in genomics research or are medically underserved. Questions focused on COVID's impact on participant recruitment, enrollment, and …

Public Health Measures And Sars-Cov-2 Cases In The Juvenile Justice System: Implications For Pandemic Response In The Detention Setting, Asha Davidson, Shelley Aggarwal, Mona Eissa, Laura Benjamins, John Will, Rebecca Beyda

Faculty, Staff and Student Publications

OBJECTIVE: The purpose of this study was to examine severe acute respiratory syndrome-coronavirus-2 case positivity in juvenile justice facilities of two different states alongside institutional, local, and state public health policies during the first 6 months of the coronavirus disease 2019 pandemic.

METHODS: This retrospective chart review examined two large, urban juvenile justice centers in California and Texas. Positive intake or day 12 tests were considered suggestive of community-acquired severe acute respiratory syndrome-coronavirus-2 infection. Researchers examined state and county restrictions, closings, and openings. The study included all of the youths 10 to 18 years residing in the facilities between March …

Risks Of Mortality And Severe Coronavirus Disease 19 (Covid-19) Outcomes In Patients With Or Without Systemic Lupus Erythematosus, Sebastian Bruera, Xiudong Lei, Hui Zhao, Jinoos Yazdany, Mariana Chavez-Macgregor, Sharon H Giordano, Maria E Suarez-Almazor

Faculty, Staff and Student Publications

OBJECTIVES: We compared the outcomes of patients with or without systemic lupus erythematosus (SLE) who were diagnosed with coronavirus disease 19 (COVID-19) and evaluated factors within patients with SLE associated with severe outcomes.

METHODS: This retrospective cohort study used the deidentified Optum COVID-19 electronic health record dataset to identify patients with COVID-19 from 1/1/2020 to 31/12/2020. Cases with SLE were matched with general controls at a ratio of 1:10 by age, sex, race and ethnicity and COVID-19 diagnosis date. Outcomes included 30-day mortality, mechanical ventilation, hospitalisation and intensive care unit admission. We evaluated the relationship between COVID-19-related outcomes and SLE …

Sars-Cov-2 Seroprevalence In Children Worldwide: A Systematic Review And Meta-Analysis, Reza Naeimi, Mahdi Sepidarkish, Abolfazl Mollalo, Hamid Parsa, Sanaz Mahjour, Fatemeh Safarpour, Mustafa Almukhtar, Amal Mechaal, Hiam Chemaitelly, Behnam Sartip, Elika Marhoommirzabak, Ali Ardekani, Peter J Hotez, Robin B Gasser, Ali Rostami

Faculty, Staff and Students Publications

BACKGROUND: The higher hospitalisation rates of those aged 0-19 years (referred to herein as 'children') observed since the emergence of the immune-evasive SARS-CoV-2 Omicron variant and subvariants, along with the persisting vaccination disparities highlighted a need for in-depth knowledge of SARS-CoV-2 sero-epidemiology in children. Here, we conducted this systematic review to assess SARS-CoV-2 seroprevalence and determinants in children worldwide.

METHODS: In this systematic review and meta-analysis study, we searched international and preprinted scientific databases from December 1, 2019 to July 10, 2022. Pooled seroprevalences were estimated according to World Health Organization (WHO) regions (at 95% confidence intervals, CIs) using random-effects …

Telemedicine Use Among Physiatrists During The Early Phase Of The Covid-19 Pandemic And Potential For Future Use, Sameer Siddiqui, Ellen Farr, Nathaniel Dusto, Liqi Chen, Masha Kocherginsky, Felicia Skelton, Monica Verduzco-Gutierrez, Sujin Lee

Faculty, Staff and Students Publications

No abstract provided.

Remote Care Adoption In Underserved Congenital Heart Disease Patients During The Covid-19 Era, Ruth M Vaughan, Judson A Moore, Jasmine S Moreno, Karla J Dyer, Abiodun O Oluyomi, Keila N Lopez

Faculty, Staff and Students Publications

The COVID-19 pandemic restricted in-person appointments and prompted an increase in remote healthcare delivery. Our goal was to assess access to remote care for complex pediatric cardiology patients. We performed a retrospective chart review of Texas Children's Hospital (TCH) pediatric cardiology outpatient appointments from March 2020 to December 2020 for established congenital heart disease (CHD) patients 1 to 17 yo. Primary outcome variables were remote care use of telemedicine and patient portal activation. Primary predictor variables were age, sex, insurance, race/ethnicity, language, and location. Descriptive statistics were used to analyze patient demographics. Multivariate logistic regression determined associations with remote care …

A Delicate Balance Between Antibody Evasion And Ace2 Affinity For Omicron Ba275, Jiandong Huo, Aiste Dijokaite-Guraliuc, Chang Liu, Daming Zhou, Helen M Ginn, Raksha Das, Piyada Supasa, Muneeswaran Selvaraj, Rungtiwa Nutalai, Aekkachai Tuekprakhon, Helen M E Duyvesteyn, Alexander J Mentzer, Donal Skelly, Thomas G Ritter, Ali Amini, Sagida Bibi, Sandra Adele, Sile Ann Johnson, Neil G Paterson, Mark A Williams, David R Hall, Megan Plowright, Thomas A H Newman, Hailey Hornsby, Thushan I De Silva, Nigel Temperton, Paul Klenerman, Eleanor Barnes, Susanna J Dunachie, Andrew J Pollard, Teresa Lambe, Philip Goulder, Optic Consortium, Isaric4c Consortium, Elizabeth E Fry, Juthathip Mongkolsapaya, Jingshan Ren, David I Stuart, Gavin R Screaton

Faculty, Staff and Student Publications

Variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have caused successive global waves of infection. These variants, with multiple mutations in the spike protein, are thought to facilitate escape from natural and vaccine-induced immunity and often increase in affinity for ACE2. The latest variant to cause concern is BA.2.75, identified in India where it is now the dominant strain, with evidence of wider dissemination. BA.2.75 is derived from BA.2 and contains four additional mutations in the receptor-binding domain (RBD). Here, we perform an antigenic and biophysical characterization of BA.2.75, revealing an interesting balance between humoral evasion and ACE2 receptor …

The Impact Of Covid-19 Pandemic Upon Non-Elective Admissions And Surgery At A Safety-Net Hospital, Aurelien Amiot, Jean-Francois Rahier, Filip Baert, Stephane Nahon, Ailsa Hart, Nikos Viazis, Livia Biancone, Eugeni Domenech, Catherine Reenears, Laurent Peyrin-Biroulet, Laurent Beaugerie, Johan Burisch, I-Care Collaborator Group

Faculty, Staff and Student Publications

BACKGROUND AND AIMS: There are concerns regarding the potential impact of the COVID-19 outbreak on patients with inflammatory bowel disease [IBD]. We report on the impact of the COVID-19 outbreak in a European prospective cohort study of patients with IBD.

PATIENTS AND METHODS: We prospectively collected data from 5457 patients with IBD nested in the ongoing I-CARE project and still followed up in April 2020, with monthly online monitoring of clinical activity, treatment, imaging and endoscopy. Investigators were also contacted to report incidental cases.

RESULTS: In total, 233 [4.3%] reported COVID-19 and 12 [0.2%] severe COVID-19, with no COVID-19 deaths. …

A Simple Seir-V Model To Estimate Covid-19 Prevalence And Predict Sars-Cov-2 Transmission Using Wastewater-Based Surveillance Data, Tin Phan, Samantha Brozak, Bruce Pell, Anna Gitter, Amy Xiao, Kristina D Mena, Yang Kuang, Fuqing Wu

Faculty, Staff and Student Publications

Wastewater-based surveillance (WBS) has been widely used as a public health tool to monitor SARS-CoV-2 transmission. However, epidemiological inference from WBS data remains understudied and limits its application. In this study, we have established a quantitative framework to estimate COVID-19 prevalence and predict SARS-CoV-2 transmission through integrating WBS data into an SEIR-V model. We conceptually divide the individual-level viral shedding course into exposed, infectious, and recovery phases as an analogy to the compartments in a population-level SEIR model. We demonstrated that the effect of temperature on viral losses in the sewer can be straightforwardly incorporated in our framework. Using WBS …

Multisite Evaluation Of Prediction Models For Emergency Department Crowding Before And During The Covid-19 Pandemic, Ari J Smith, Brian W Patterson, Michael S Pulia, John Mayer, Rebecca J Schwei, Radha Nagarajan, Frank Liao, Manish N Shah, Justin J Boutilier

Faculty, Staff and Student Publications

OBJECTIVE: To develop a machine learning framework to forecast emergency department (ED) crowding and to evaluate model performance under spatial and temporal data drift.

MATERIALS AND METHODS: We obtained 4 datasets, identified by the location: 1-large academic hospital and 2-rural hospital, and time period: pre-coronavirus disease (COVID) (January 1, 2019-February 1, 2020) and COVID-era (May 15, 2020-February 1, 2021). Our primary target was a binary outcome that is equal to 1 if the number of patients with acute respiratory illness that were ED boarding for more than 4 h was above a prescribed historical percentile. We trained a random forest …

Public Health Interventions Guided By Houston’S Wastewater Surveillance Program During The Covid-19 Pandemic, Loren Hopkins, Katherine B Ensor, Lauren Stadler, Catherine D Johnson, Rebecca Schneider, Kaavya Domakonda, James J Mccarthy, Edward J Septimus, David Persse, Stephen L Williams

Faculty, Staff and Student Publications

Since the start of the COVID-19 pandemic, wastewater surveillance has emerged as a powerful tool used by public health authorities to track SARS-CoV-2 infections in communities. In May 2020, the Houston Health Department began working with a coalition of municipal and academic partners to develop a wastewater monitoring and reporting system for the city of Houston, Texas. Data collected from the system are integrated with other COVID-19 surveillance data and communicated through different channels to local authorities and the general public. This information is used to shape policies and inform actions to mitigate and prevent the spread of COVID-19 at …

Covidanno, Covid-19 Annotation In Human, Yuzhou Feng, Mengyuan Yang, Zhiwei Fan, Weiling Zhao, Pora Kim, Xiaobo Zhou

Faculty, Staff and Student Publications

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiologic agent of coronavirus disease 19 (COVID-19), has caused a global health crisis. Despite ongoing efforts to treat patients, there is no universal prevention or cure available. One of the feasible approaches will be identifying the key genes from SARS-CoV-2-infected cells. SARS-CoV-2-infected in vitro model, allows easy control of the experimental conditions, obtaining reproducible results, and monitoring of infection progression. Currently, accumulating RNA-seq data from SARS-CoV-2 in vitro models urgently needs systematic translation and interpretation. To fill this gap, we built COVIDanno, COVID-19 annotation in humans, available at http://biomedbdc.wchscu.cn/COVIDanno/. The aim …

Workplace Aggression Against Healthcare Workers In A Spanish Healthcare Institution Between 2019 And 2021: The Impact Of The Covid-19 Pandemic, Aitor Díaz, Mireia Utzet, Joan Mirabent, Pilar Diaz, Jose Maria Ramada, Consol Serra, Fernando G Benavides

Faculty, Staff and Student Publications

OBJECTIVES: Describe the incidence of first aggressions among healthcare workers (HCWs) before and during the COVID-19 pandemic in a Spanish healthcare institution, according to workers' socio-occupational characteristics and analyze the impact of the pandemic on it.

METHODS: A cohort involving HCWs who worked in the institution for at least 1 week each year from 1 January 2019 to 31 December 2021. Adjusted relative risks (aRR) were estimated using generalized estimating equations and negative binomial models to calculate the differences in WPA between the different time periods. All analyses were stratified by gender.

RESULTS: Among women, the incidence was 6.8% (6.0; …

Age And Sex-Specific Stroke Epidemiology In Covid-19, Youngran Kim, Maria A Parekh, Xiaojin Li, Yan Huang, Guo-Qiang Zhang, Bharti Manwani

Faculty, Staff and Student Publications

BACKGROUND: COVID-19 has emerged as an independent risk factor for stroke. We aimed to determine age and sex-specific stroke incidence and risk factors with COVID-19 in the US using a large electronic health record (EHR) that included both inpatients and outpatients.

METHODS: A retrospective cohort study was conducted using individual-level data from Optum

RESULTS: Of 387,330 COVID-19 patients, 2,752 patients (0.71%, 95% CI 0.68-0.74) developed stroke during the 180-day follow-up, AIS in 0.65% (95% CI 0.62-0.67), and ICH in 0.11% (95% CI 0.10-0.12). Of strokes among COVID-19 patients, 57% occurred within 3 days. Advanced age was associated with a substantially …

Pregnancy-Related Covid Worry, Depressive Symptom Severity, And Mediation Through Sleep Disturbance In A Low-Income, Primarily Latinx Population In California’S Central Valley, Jennifer N Felder, Patience A Afulani, Kimberly Coleman-Phox, Serwaa S Omowale, Charles E Mcculloch, Lauren Lessard, Miriam Kuppermann

Faculty, Staff and Student Publications

Purpose: This study (1) assessed the psychometric properties of a pregnancy-related COVID worry scale, (2) explored variations in pregnancy-related COVID worry over the course of the pandemic, and (3) examined associations between pregnancy-related COVID worry and depressive symptom severity, and evaluated sleep disturbance as a mediator.

Methods: Data were drawn from an ongoing randomized trial comparing the effectiveness of two enhanced forms of prenatal care. The current analysis includes baseline pre-randomization data collected from participants who enrolled November 2020-November 2021 (n = 201). Participants were pregnant individuals with low income and primarily Latinx.

Results: Our 7-item scale was valid and …

Depression And Insomnia Among Healthcare Professionals During Covid-19 Pandemic In Ethiopia: A Systematic Review And Meta-Analysis, Aragaw Asfaw Hasen, Abubeker Alebachew Seid, Ahmed Adem Mohammed

Faculty, Staff and Student Publications

INTRODUCTION: Healthcare professionals play a great role in the struggle against COVID-19. They are highly susceptible to COVID-19 due to their responsibilities. This susceptibility directly affects their mental health status. Comprehensive evidence on prevalence of depression and insomnia during this pandemic is vital. Thus, this study aims to provide the pooled prevalence of depression and insomnia, and their associated factors during the COVID-19 pandemic.

MATERIALS AND METHODS: This systematic review and meta-analysis follow the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. Studies were searched from PubMed, Cochrane Library, CrossRef, African Journals Online and Google Scholar databases from …

Safety Of Multiple Intravenous Infusions Of Adipose-Derived Mesenchymal Stem Cells For Hospitalized Cases Of Covid-19: A Randomized Controlled Trial, Constanza De Dios, Ridhima Vij, Hosu Kim, Hyeonggeun Park, Donna Chang

Faculty, Staff and Student Publications

OBJECTIVE: The purpose of the study was to assess the safety of allogeneic, Hope Biosciences Adipose Derived Mesenchymal Stem Cells (HB-adMSCs) for the treatment of hospitalized subjects with COVID-19.

METHODS:

RESULTS: Majority of AEs were mild in severity. HB-adMSC group showed a higher incidence of cardiopulmonary failure, anemia, anxiety, and diarrhea, while placebo group showed a higher incidence of headaches, fatigue, and chest discomfort (posterior probabilities ≥80%). Deaths were attributed to severe complications due to COVID-19 and were unrelated to study drug. No AEs were attributed to the treatment. Hematology and coagulation panel alterations were not associated with HB-adMSCs. Analyses …

Real-World Performance Of Sars-Cov-2 Serology Tests In The United States, 2020, Carla V Rodriguez-Watson, Anthony M Louder, Carly Kabelac, Christopher M Frederick, Natalie E Sheils, Elizabeth H Eldridge, Nancy D Lin, Benjamin D Pollock, Jennifer L Gatz, Shaun J Grannis, Rohit Vashisht, Kanwal Ghauri, Camille Knepper, Sandy Leonard, Peter J Embi, Garrett Jenkinson, Reyna Klesh, Omai B Garner, Ayan Patel, Lisa Dahm, Aiden Barin, Dan M Cooper, Tom Andriola, Carrie L Byington, Bridgit O Crews, Atul J Butte, Jeff Allen

Faculty, Staff and Student Publications

BACKGROUND: Real-world performance of COVID-19 diagnostic tests under Emergency Use Authorization (EUA) must be assessed. We describe overall trends in the performance of serology tests in the context of real-world implementation.

METHODS: Six health systems estimated the odds of seropositivity and positive percent agreement (PPA) of serology test among people with confirmed SARS-CoV-2 infection by molecular test. In each dataset, we present the odds ratio and PPA, overall and by key clinical, demographic, and practice parameters.

RESULTS: A total of 15,615 people were observed to have at least one serology test 14-90 days after a positive molecular test for SARS-CoV-2. …

“So Many Extra Safety Layers:” Virtual Service Provision And Implementing Social Distancing In Interpersonal Violence Service Agencies During Covid-19, Rachel J Voth Schrag, Sarah Leat, Bethany Backes, Saltanat Childress, Leila Wood

Faculty, Staff and Student Publications

The coronavirus pandemic necessitated rapid shifts in approach for service providers working with survivors of interpersonal violence. To reduce the spread of the virus, providers and agencies implemented a rapid and unplanned expansion of virtual services while also developing new protocols to support safe and socially distant in-person services. To understand how these shifts have impacted victim service professionals and the survivors they serve, to provide guidance for on-going efforts, and to inform planning for future public health emergencies, this study asks the question: What approaches did the interpersonal violence workforce use to address social distancing needs during COVID-19? Semi-structured …

Antithrombin Activity Is Associated With Persistent Thromboinflammation And Mortality In Patients With Severe Covid-19 Illness, Amber Chen-Goodspeed, Goutham Dronavalli, Xu Zhang, Jeanette M Podbielski, Bela Patel, Katalin Modis, Bryan A Cotton, Charles E Wade, Jessica C Cardenas

Faculty, Staff and Student Publications

Introduction: Severe COVID-19 illness can lead to thrombotic complications, organ failure, and death. Antithrombin (AT) regulates thromboinflammation and is a key component of chemical thromboprophylaxis. Our goal was to examine the link between AT activity and responsiveness to thromboprophylaxis, markers of hypercoagulability, and inflammation among severe COVID-19 patients.

Methods: This was a single-center, prospective observational study enrolling SARS-CoV-2-positive patients admitted to the intensive care unit on prophylactic enoxaparin. Blood was collected daily for 7 days to assess AT activity and anti-factor Xa levels. Patient demographics, outcomes, and hospital laboratory results were collected. Continuous variables were compared using Mann-Whitney tests, and …

A Longitudinal Seroepidemiology Study To Evaluate Antibody Response To Sars-Cov-2 Virus Infection And Vaccination In Children In Calgary, Canada From July 2020 To April 2022: Alberta Covid-19 Childhood Cohort (Ab3c) Study, Emily J Doucette, Joslyn Gray, Kevin Fonseca, Carmen Charlton, Jamil N Kanji, Graham Tipples, Susan Kuhn, Jessica Dunn, Payton Sayers, Nicola Symonds, Guosong Wu, Stephen B Freedman, James D Kellner

Faculty, Staff and Student Publications

BACKGROUND: Measurement of SARS-CoV-2 antibody seropositivity is important to accurately understand exposure to infection and/or vaccination in specific populations. This study aimed to estimate the serologic response to SARS-CoV-2 virus infection and vaccination in children in Calgary, Alberta over a two-year period.

METHODS: Children with or without prior SARS-CoV-2 infections, were enrolled in Calgary, Canada in 2020. Venous blood was sampled 4 times from July 2020 to April 2022 for SARS-CoV-2 nucleocapsid and spike antibodies. Demographic and clinical information was obtained including SARS-CoV-2 testing results and vaccination records.

RESULTS: 1035 children were enrolled and 88.9% completed all 4 visits; median …

Seizures, Vitamin D Deficiency, And Severe Hypophosphatemia: The Unique Presentation Of A Sars-Cov-2 Case, Benson Yeh, Christopher Bell, Christopher Anderson, Mack Sheraton

Faculty, Staff and Student Publications

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a virus that belongs to the species severe acute respiratory syndrome-related coronavirus (SARSr-CoV), which is related to the SARS-CoV-1 virus that caused the 2002-2004 SARS outbreak. SARS-CoV-2 causes coronavirus disease 2019 (COVID-19). It has been associated with electrolyte abnormalities. In this report, we discuss the case of a SARS-CoV-2-infected person presenting with recurrent seizure episodes resulting from hypophosphatemia. A 52-year-old male patient with questionable prior seizure history presented to the emergency department (ED) twice within eight days with recurring seizure episodes. While the physical examination at the first presentation was significant for …

Risk Of Depression In A Suburban Primary Care Setting Before And During The Covid-19 Pandemic, Carman H Whiting, Pouran Yousefi, Jude K A Des Bordes, Nahid J Rianon

Faculty, Staff and Student Publications

INTRODUCTION: Major depression is a common disorder affecting millions of adults each year. Many population-based surveys showed an increase in the number people with symptoms of depression at the onset of the COVID-19 pandemic. Our aim was to determine and compare the prevalence of depression risk in a primary care setting before and during the COVID-19 pandemic.

METHODS: We conducted a cross-sectional study based on retrospective review of medical records from a large suburban primary care clinic. Records of adults 18 years and older, seen between January 1, 2019 and December 31, 2020 and who had also been screened for …