Infectious Disease Commons^™

Human Polyomavirus Jcpyv And Its Role In Progressive Multifocal Leukoencephalopathy And Oncogenesis, Luis Del Valle, Sergio Piña-Oviedo

School of Medicine Faculty Publications

The human neurotropic virus JCPyV, a member of the family, is the opportunistic infectious agent of Progressive Multifocal Leukoencephalopathy (PML), a fatal disease seen in severe immunosuppressive conditions and, during the last decade, in patients undergoing immunotherapy. JCPyV is a ubiquitous pathogen with up to 85% of the adult population word-wide exhibiting antibodies against it. Early experiments demonstrated that direct inoculation of JCPyV into the brain of different species resulted in the development of brain tumors and other neuroectodermal-derived neoplasias. Later, several reports showed the detection of viral sequences in medulloblastomas and glial tumors, as well as expression of the …

Rig-I-Like Receptors Direct Inflammatory Macrophage Polarization Against West Nile Virus Infection., Amy E. L. Stone, Richard Green, Courtney Wilkins, Emily A. Hemann, Michael Gale Jr.

College of Osteopathic Medicine (TUN) Publications and Research

RIG-I-Like Receptors (RLRs) RIG-I, MDA5, and LGP2, are vital pathogen recognition receptors in the defense against RNA viruses. West Nile Virus (WNV) infections continue to grow in the US. Here, we use a systems biology approach to define the contributions of each RLR in the innate immune response to WNV. Genome-wide RNAseq and bioinformatics analyses of macrophages from mice lacking either RLR reveal that the RLRs drive distinct immune gene activation and response polarization to mediate an M1/inflammatory signature while suppressing the M2/wound healing phenotype. While LGP2 functions to modulate inflammatory signaling, RIG-I and MDA5 together are essential for M1 …

Longitudinal Quantification Of Adenovirus Neutralizing Responses In Zambian Mother-Infant Pairs: Impact Of Hiv-1 Infection And Its Treatment, Sara R. Privatt, Brianna L. Bullard, Eric A. Weaver, Charles Wood, John T. West

Nebraska Center for Virology: Faculty Publications

Vaccination offers the most cost-effective approach to limiting the adverse impact of infectious and neoplastic diseases that reduce the quality of life in sub-Saharan Africa (SSA). However, it is unclear what vaccine vectors would be most readily implementable in the setting and at what age they should be applied for maximal efficacy. Adenoviruses (Ad) and Ad-based vectors have been demonstrated to induce effective humoral and cellular immune responses in animal models and in humans. However, because immunity associated with Ad infection is lifelong, there exists a debate as to whether pre-existing immunity might decrease the efficacy of Ad vectored vaccines. …

Group A Streptococcus Brain Abscess In A Patient On Adalimumab Therapy, Ryan Carroll, Ahmad Abu-Hashyeh, James Gainer, Kara Willenburg, Charles Meadows

Marshall Journal of Medicine

Brain abscesses represent a group of dangerous infections typically caused by a number of classic organisms. Group A Streptococcus is a rare cause of brain abscesses and those patients that do have this particular condition will typically have a distal source of infection. We present a case of patient with a biopsy confirmed Group A Streptococcal without a distal source of infection. His only identifiable risk factor was his adalimumab therapy for ankylosing spondylitis. While adalimumab has not been linked to Streptococcal infection in the past, it has been associated with multiple atypical infections and some of the consequences of …

“I Don’T Want To Look Sick Skinny”: Perceptions Of Body Image And Weight Loss In Hispanics Living With Hiv In South Texas, Jordan W. Abel, Omar Allen, Delia Bullock, Erin Finley, Elizabeth Walter, Phillip Schnarrs, Barbara S. Taylor

Journal of Health Disparities Research and Practice

Objective: Obesity is rising in people with HIV (PLWH) and Hispanics. Both HIV and obesity are associated with cardiovascular disease morbidity and mortality. Our goal is to understand perceptions of body image and lifestyle in Hispanics with HIV to adapt interventions appropriately.

Methods: We conducted semi-structured interviews with 22 Hispanic PLWH and 6 providers. Purposive sampling selected patient participants across weights and genders. Interviews were coded and analyzed using grounded theory, comparing perspectives between patients with and without obesity, and patients and providers.

Results: Participants felt obesity and diabetes were “normal” in the community. Patients exhibited understanding of healthy diet …

Transmissible Dermatological Diseases Affecting Syrian Refugees In Lebanon, Nisrine Kawa, Edith Hanna, Abdul Rahman Bizri

Journal of Refugee & Global Health

The Syrian war led many to seek shelter in Lebanon, creating a major refugee crisis. Displaced populations in crowded unequipped settlements are vulnerable to infectious diseases. The burden and incidence of various transmissible skin conditions affecting Syrian refugees in Lebanon and their impact on the Lebanese public health system were evaluated. Literature regarding these conditions among Syrian refugees in host countries, and epidemiological data from the Lebanese Ministry of Public Health Surveillance Unit and primary health-care network were reviewed. Lebanon has witnessed skin disorder outbreaks associated with the Refugee crisis, mainly leishmaniasis, scabies and lice infestations with little data about …

Antibiotic Resistance And Molecular Characterization Of Bacteremia Escherichia Coli Isolates From Newborns In The United States., Bryan K. Cole, Marko Ilikj, Cindy B. Mccloskey, Susana Chavez-Bueno

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Escherichia coli is a major cause of neonatal sepsis. Contemporary antibiotic resistance data and molecular characterization of neonatal E. coli bacteremia isolates in the US are limited.

METHODS: E. coli blood isolates, antibiotic susceptibility data, and clinical characteristics were obtained from prospectively identified newborns from 2006 to 2016. The E. coli isolates were classified using an updated phylogrouping method and multi-locus sequence typing. The presence of several virulence traits was also determined.

RESULTS: Forty-three newborns with E. coli bacteremia were identified. Mean gestational age was 32.3 (SD±5.4) weeks. Median age was 7 days (interquartile range 0-10). Mortality (28%) occurred …

When An Infected Meniscus Portends A Perforated Viscus, Michelle Hannon, Stephen Zachariah, Neha Bansal Etherington, Anusha Govind, Devin Weber, Bryan Hess

Division of Infectious Diseases and Environmental Medicine Faculty Papers

A 59-year-old woman with a status of post–renal transplant 7 years prior for autosomal dominant polycystic kidney disease on tacrolimus and mycophenolate mofetil presented with subacute left knee and right wrist pain. She received local steroid injections to both areas as an outpatient without improvement in her symptoms. She had recently traveled to India, her home country, to visit relatives. Aspiration of the knee revealed 4+ acid fast bacilli on smear, and she was taken for surgical debridement. She was started on empiric antibiotics for presumed infection with rapidly growing mycobacteria. Her course was complicated by acute onset abdominal pain …

Increasing Actual And Perceived Burden Of Tick-Borne Disease In Maine, Robert P. Smith Md Mph, Carol A. Mccarthy Md, Susan P. Elias Phd

Journal of Maine Medical Center

Introduction: The burden of tick-borne disease (TBD) in Maine has steadily increased since the first case of Lyme disease was reported in the late 1980s. The emergence of five different agents of TBD in Maine has been challenging and confusing for clinicians and the public.

Methods: We reviewed the ecology of emerging of tick -borne disease, then reviewed risk factors for tick bites and tick-borne disease in Maine. We then compared the burden of TBD versus community-acquired comparison infections in terms of hospitalizations, deaths, and media attention.

Results and Discussion: In Maine, risk of exposure to bites from the vector …

Signs Of Psychosis Leading To A Diagnosis Of Progressive Multifocal Leukoencephalopathy: A Case Report, Bryan L. Walker, Christina Holt Md, Msc

Journal of Maine Medical Center

Introduction: Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating process of the central nervous system that occurs in in the setting of severe immunocompromise. Patients with PML develop varying focal neurological deficits and mental status changes that have not been well-described previously.

Clinical findings: We present a patient who was found by security wandering the lobby of this hospital. He was oriented only to self and unable to state a reason for presentation. Medical records were limited and included a visit to an outside hospital that documented a past medical history of HIV infection. He exhibited multiple signs of psychosis …

Role Of Gp120 Glycosylation In Sexual Transmission Of Hiv, Yingxue Sun, Adam Meadows, Najwa Zebian, Eric Arts, Carole Creuzenet

Western Research Forum

Background:

In chronic HIV patients, the viral populations are genetically diverse due to mutations introduced by the viral reverse transcriptase during HIV replication. However, more than 80% new infections result from single transmission founder (TF) viruses; therefore, targeting the TFs is key to control AIDS worldwide.

Gp120 is a glycosylated envelope protein required for HIV infection, propagation, and transmission. Glycans on gp120 influence HIV infectivity through their interactions with lectins, the carbohydrate-binding immune proteins in the host mucosa. To transmit sexually, viruses must overcome the lectin traps to access more target T cells.

Hypothesis:

TF viruses are less likely to …

Phylogenetic Estimates Of Hiv-1 Gp120 Indel Rates Across The Group M Subtypes, John Palmer, Art Poon

Western Research Forum

Insertions and deletions (indels) in the HIV-1 envelope glycoprotein gp120 play a significant role in the evolution of HIV pathogenesis and transmission fitness. While substitution rates in HIV-1 are well characterized by phylogenetic models, there is a lack of quantitative measures of indel rates in HIV-1. Here we use a dated-tip phylogenetic analysis of gp120 sequences to estimate indel rates for 7 subtypes and CRFs of HIV-1 group M.

We obtained and processed 26,359 HIV-1 gp120 sequences from the Los Alamos National Laboratory HIV Sequence database. After filtering these sequences, we extracted the conserved and variable regions from the remaining …

Making Sure Your Voice Is Heard Lgbtqi Documentation For End Of Life, Kenneth J. Mangano Bhas, Mcm

Patient Care Services / Nursing

No abstract provided.

Aspiration Pneumonia After Spine Surgery At Tjuh, Daniel Franco, Md, Jesse Edwards, Md, Kristen Vogl, Pt, Barbara Baskin, Slp, James Harrop, Md

House Staff Quality Improvement and Patient Safety Conference (2016-2019)

Problem Definition

Aspiration Pneumonia after Spine Surgery at TJUH has a disproportionately high incidence, compared to other major academic centers When Aspiration Pneumonia is diagnosed in the immediate post operative period, this cascades into increased length of stay, increased overall cost and possibility negative impact for physician and hospital reimbursement At this time, it is unclear which criteria are used by physicians to determine whether an aspiration event has happened.

Reduction Of The Duration Of Contact Precautions In Patients With A Positive Mrsa Swab, Fadi Al-Saiegh, Md, Phyllis Flomenberg, Md, Giuliana Labella, Rn, Kelli Mcrory, James Harrop, Md

House Staff Quality Improvement and Patient Safety Conference (2016-2019)

Background

Contact precautions (CP) in hospitals are a method of infection control in the transmission of multi-drug resistant organisms. Unfortunately, even though colonization with nasal methicillin-resistant Staphylococcus aureus (MRSA) is common in asymptomatic patients (3.8-4.5%) (6,7), patients are screened for nasal MRSA since it associated with higher morbidity and mortality. However, those who test positive for nasal MRSA are kept on CP even with a cleared MRSA infection(1). At TJUH, patients were kept on CP for 24 months after a positive swab regardless of location. This, unfortunately, led to unintended negative consequences: delay in patient transfer to other facilities (e. …

Price Variance For Malaria Prophylaxis Among Northeastern Us Pharmacies, Marcelo Gareca Md, Mark Knouse Md

Department of Medicine

No abstract provided.

An Infection Control Journey In Hospital Based Practice Conversion, Cathleen Strzalka, Mph, Cph, Cic, Kelly Zabriskie, Cic

Division of Infectious Diseases and Environmental Medicine Posters

Objective

• Effectively bring physician based practices (PBPs) under hospital licensure
• Ensure safe delivery of care
• Produce successful regulatory surveys

Physician Based Practices And Instrument Sterilization - How Do You Do It?, Kelly Zabriskie, Cic, Cathleen Strzalka, Mph, Cph, Cic

Division of Infectious Diseases and Environmental Medicine Posters

Objective

To develop a process that allows the PBP to operate efficiently and effectively but still be compliant with proper instrument reprocessing rules and regulations.

Hand Hygiene Observations… Not So Secret Anymore, Mary Ehly, Bsn, Rn, Cic, Courtney Mitchell, Mph, Cic, Charlotte Sacksteder, Ba, Kelly Zabriskie, Bs, Cic

Division of Infectious Diseases and Environmental Medicine Posters

Objective

To create a hand hygiene surveillance program to reduce bias, be more reliable, yield a greater number of observations, and provide real time feedback

Analysis Of Candida Auris Fungemia At A Single Facility In Kenya, Rodney Adam, Gunturu Revathi, Nancy Okinda, Melanie Fontaine, Jasmit Shah, Elizabeth Kagotho, Mariana Castanheira, Michael A. Pfaller, Daniel Maina

Pathology, East Africa

Objectives: Candida auris emerged as a human pathogen in 2009 and has subsequently been identified around the world as a cause of invasive candidiasis. We did an analysis from a single institution in order to analyze risk factors and outcomes for C. auris candidemia.

Methods: Patients with candidemia were identified by the electronic medical record and reviewed for risk factors and outcome. Candida isolates were identified by Vitek2 as Candida haemulonii, but species determinations for 21 of the isolates using published molecular and proteomic methods identified all as C. auris.

Findings: From September 2010 to December 2016, C. auris accounted …

Exploring The Relationship Between Medical Insurance And Vaccine Acceptance Rates, Mark Knouse Md, Yennifer Lopez, Hope Kincaid Mph, Cph, Shae Duka Bs

Department of Medicine

No abstract provided.

Experience Of An Infectious Diseases (Id) Travel Medicine Clinic During A National Shortage Of Yellow Fever Vaccine (Yfv), Mark Knouse Md, Terri I. Langham Rn, Marcelo Gareca Md, Jarrod W. Kile Rphd

Department of Medicine

No abstract provided.

Impact Of A Mobile Device-Based Clinical Decision Support Tool On Guideline Adherence And Mental Workload Among Trainee And Attending Physicians, Katherine M. Richardson

Presentations

This study evaluated PedsGuide, an app used to evaluate serious bacterial infections in febrile infants.

Optimization Of Surgical Prophylaxis In Penicillin-Allergic Labeled Patients, Katie A. Vandervelde

Research Days

No abstract provided.

Amphotercin Washout Of Fungal Peritonitis In Liver Transplant Recipient: A Novel Approach, Ann Thompson, Mara Piltin, Alyssa Imperatore, Ely Sebastian, Sandra Paluzzi

Rowan-Virtua Research Day

Invasive fungal infection has a significant prevalence among organ transplant patients and is associated with high rates of morbidity and mortality. Fungal infection is difficult to identify early and subsequently difficult to effectively treat. In this case presentation we have a 45 y/o orthotopic liver transplant recipient who was profoundly sick from fungal peritonitis and due to the appearance of her abdomen and intestines, with the help of infectious disease, decided to proceed with direct amphotercin washout of the abdomen in the operating room. The patient had complete resolution of her fungal peritonitis and is doing well.

Viral Whole Genome Sequencing For Antiviral Resistance In A Child With Dock8 Deficiency And Recurrent Hsv-1, Sean Stout, A. L. Greninger, Rangaraj Selvarangan, A. F. Freeman, Brandon D. Newell, Erin Stahl, Dwight Yin

Posters

We present the case of a child with dedicator of cytokinesis 8 (DOCK8) deficiency and chronic, resistant HSV-1 mucocutaneous infections to illustrate the clinical utility of viral whole genome sequencing to detect active and latent HSV resistance mutations.

Clinical Spectrum And Factors Impacting Outcome Of Candida Auris: A Single Center Study From Pakistan, Muneeba Ahsan Sayeed, Joveria Farooqi, Kauser Jabeen, Safia Awan, S Mahmood

Section of Internal Medicine

Background: An outbreak of Candida auris began globally in 2014 including Pakistan and since then it has emerged as a nosocomial multi-drug resistant pathogen. The aim of this study was to assess the clinical spectrum and outcome of patients, from a single center in Pakistan, in whom C. auris was isolated.

Methods: A retrospective study was conducted on 92 patients; ≥16 years with at least one culture positive for C. auris, at the Aga Khan University Hospital Karachi, Pakistan from Sept 2014-Mar 2017.Demographics, clinical history, management and outcome were studied. A logistic regression model was used to identify the risk …

Effect Of A Robust Electronic Medical Record Order Set On Hepatitis C Screening Rate At A Community Hospital, Hannah Olsen, Caroline Knight, Harold Van Lonkhuyzen

MaineHealth Maine Medical Center

Background:

Hepatitis C Virus (HCV) infection is a liver infection that typically begins as an acute infection and if left untreated, can become a chronic infection. One-time HCV testing is recommended by the CDC and United States Preventive Services Task Force (USPSTF) for asymptomatic individuals based on evaluated exposure or other circumstances that increase HCV exposure (HCV Guidance, 2018); (CDC, 2012). Patients with severe mental disorders, such as schizophrenia and bipolar disorders are particularly at risk for HCV infection with past studies finding approximately 6.2 - 29.8% of patients with severe mental disorders having comorbid HCV (Ayano et al., 2018) …

Reducing Catheter Associated Urinary Tract Infections (Cauti) By Decreasing Use Of Indwelling Catheters, Joanne Chapman, Brenda Clark, Brian Jumper, Carrie Strick

MaineHealth Maine Medical Center

Background:

Catheter Associated Urinary Tract Infections (CAUTI) are considered a preventable hospital-acquired infection [2]. Centers for Medicaid and Medicare no longer reimburse hospitals for preventable CAUTIs [2]. A concerted effort to decrease our indwelling urinary catheter (IUC) rate has led to a decrease in the number of infections related to these catheters at Maine Medical Center (MMC) in Portland, Maine. Starting in 2012 as a result of The Joint Commission National Patient Safety Goal, the inter-professional CAUTI committee focus has been on decreasing utilization of IUC[1]. After an initial large decrease in utilization, the rates have flattened. The effort over …

Microbiota Signatures In Type-2 Diabetic Patients With Chronic Kidney Disease - A Pilot Study, Gratiela P. Gradisteanu, Roxana A. Stoica, Laura Petcu, Ariana Picu, Adrian P. Suceveanu, Teodor Salmen, Diana S. Stefan, Cristian Serafinceanu, Mariana Carmen Chifiriuc, Anca P. Stoian

Journal of Mind and Medical Sciences

The human microbiota is paramount for normal host physiology. Altered host-microbiome interactions are part of the pathogenesis of numerous common ailments. Currently, much emphasis is placed on the involvement of the microbiome in the pathogenesis of type-2 diabetes mellitus (T2DM), impaired glucose tolerance, and other metabolic disorders (i.e. obesity). Several studies found highly significant correlations of specific intestinal bacteria with T2DM. A better understanding of the role of the microbiome in diabetes and its complications might provide new insights in the development of new therapeutic principles.

Our pilot study investigates the microbiota patterns in Romanian type-2 diabetic patients with diabetic …