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Full-Text Articles in Organisms

Determinants Of Immunization In Polio Super High-Risk Union Councils Of Pakistan, Ahmad Khan, Imtiaz Hussain, Dale A. Rhoda, Muhammad Umer, Uzair Ansari, Imran Ahmed, Caitlin Clary, Rana Muhammad Safdar, Sajid Bashir Soofi Dec 2023

Determinants Of Immunization In Polio Super High-Risk Union Councils Of Pakistan, Ahmad Khan, Imtiaz Hussain, Dale A. Rhoda, Muhammad Umer, Uzair Ansari, Imran Ahmed, Caitlin Clary, Rana Muhammad Safdar, Sajid Bashir Soofi

Centre of Excellence in Women and Child Health

Background: The current polio epidemiology in Pakistan poses a unique challenge for global eradication as the country is affected by ongoing endemic poliovirus transmission. Across the country, 40 union councils (UCs) which serve as core reservoirs for poliovirus with continuous incidences of polio cases are categorized as super-high-risk union councils (SHRUCs).
Methodology: A cross-sectional survey was conducted in 39 SHRUCs using a two-stage stratified cluster sampling technique. 6,976 children aged 12-23 months were covered. A structured questionnaire was used for data collection. Data were analyzed using STATA version 17.
Results: Based on both vaccination records and recall, 48.3% of children …


Outpatient Sexually Transmitted Infection Testing And Treatment Patterns In The United States: A Real-World Database Study, Rebecca Lillis, Louis Kuritzky, Zune Huynh, Rodney Arcenas, Avneet Hansra, Roma Shah, Baiyu Yang, Stephanie N. Taylor Jul 2023

Outpatient Sexually Transmitted Infection Testing And Treatment Patterns In The United States: A Real-World Database Study, Rebecca Lillis, Louis Kuritzky, Zune Huynh, Rodney Arcenas, Avneet Hansra, Roma Shah, Baiyu Yang, Stephanie N. Taylor

School of Medicine Faculty Publications

Background: Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are the most common notifiable sexually transmitted infections (STIs) in the United States. Because symptoms of these infections often overlap with other urogenital infections, misdiagnosis and incorrect treatment can occur unless appropriate STI diagnostic testing is performed in clinical settings. The objective of this study was to describe STI diagnostic testing and antimicrobial treatment patterns and trends among adolescent and adult men and women with lower genitourinary tract symptoms (LGUTS). Methods: We analyzed insurance claims data from the IBM® MarketScan® Research Databases. Patients included were between 14 and 64 years old with …


Elucidating The Impact Of Sos-Response Timing In On Escherichia Coli Survival Following Treatment With Fluoroquinolone Topoisomerase Inhibitors, Stephanie Schofield May 2023

Elucidating The Impact Of Sos-Response Timing In On Escherichia Coli Survival Following Treatment With Fluoroquinolone Topoisomerase Inhibitors, Stephanie Schofield

Honors Scholar Theses

Antibiotic treatment failure is a public health crisis, with a 2019 report stating that roughly 35,000 deaths occur in the United States yearly due to bacterial infections that are unresponsive to antibiotics (1). One complication in the treatment of bacterial infection is antibiotic persistence which further compromises our battle to effectively treat infection. Bacterial persisters can exist in clonal bacterial cultures and can tolerate antibiotic treatment by undergoing reversible phenotypic changes. They can survive drug concentrations that their genetically identical kin cannot. Some persisters remain in a slow growing state and are difficult to target with current antibiotics. A specific …


Independent Effects Of Hiv And Antiretroviral Therapy On The Oral Microbiome Identified By Multivariate Analyses, Clifford J. Beall, Elizabeth A. Lilly, Carolina Granada, Kelly Treas, Kenneth R. Dubois, Shahr B. Hashmi, Jose A. Vazquez, Michael E. Hagensee, Ann L. Griffen, Eugene J. Leys, Paul L. Fidel Apr 2023

Independent Effects Of Hiv And Antiretroviral Therapy On The Oral Microbiome Identified By Multivariate Analyses, Clifford J. Beall, Elizabeth A. Lilly, Carolina Granada, Kelly Treas, Kenneth R. Dubois, Shahr B. Hashmi, Jose A. Vazquez, Michael E. Hagensee, Ann L. Griffen, Eugene J. Leys, Paul L. Fidel

School of Dentistry Faculty Publications

The oral microbiome is an important predictor of health and disease. We recently reported significant yet modest effects of HIV under highly active antiretroviral therapy (ART) on the oral microbiome (bacterial and fungal) in a large cohort of HIV-positive (HIV+) and matched HIV-negative (HIV-) individuals. As it was unclear whether ART added to or masked further effects of HIV on the oral microbiome, the present study aimed to analyze the effects of HIV and ART independently, which also included HIV- subjects on preexposure prophylaxis (PrEP) therapy. Cross-sectional analyses of the effect of HIV devoid of ART (HIV+ ART- versus matched …


Implementation Of Mrsa Nasal Swabs As An Antimicrobial Stewardship Intervention To Decrease Anti-Mrsa Therapy In Covid-19 Infection, Alaina Dekerlegand, Emily Johnston, Britney Mellor, Melanie Rae Schrack, Catherine O’Neal Jan 2023

Implementation Of Mrsa Nasal Swabs As An Antimicrobial Stewardship Intervention To Decrease Anti-Mrsa Therapy In Covid-19 Infection, Alaina Dekerlegand, Emily Johnston, Britney Mellor, Melanie Rae Schrack, Catherine O’Neal

School of Medicine Faculty Publications

In the early stages of treating patients with SARS-CoV-2, limited information was available to guide antimicrobial stewardship interventions. The COVID-19 Task Force and Antimicrobial Stewardship Committee, at a 988-bed academic medical center, implemented the use of methicillin-resistant Staphylococcus aureus (MRSA) nasal swab polymerase chain reaction (PCR) testing to assist with the de-escalation of anti-MRSA therapy in patients with suspected superimposed bacterial pneumonia in COVID-19. A retrospective study was conducted to evaluate the impact of MRSA nasal swab PCR testing on the rate of anti-MRSA therapy between 13 April 2020 and 26 July 2020. A total of 122 patients were included …


Knowledge, Attitudes, And Practices (Kap) Towards Covid-19 Pandemic Among Pregnant Women In A Tertiary Hospital In Karachi, Pakistan, Sumaira Naz, Syeda Dur E Shawar, Shamila Saleem, Ayesha Malik, Amir Raza Nov 2022

Knowledge, Attitudes, And Practices (Kap) Towards Covid-19 Pandemic Among Pregnant Women In A Tertiary Hospital In Karachi, Pakistan, Sumaira Naz, Syeda Dur E Shawar, Shamila Saleem, Ayesha Malik, Amir Raza

Department of Obstetrics & Gynaecology

Background: The aim of this study was to evaluate the knowledge, attitude, and practices (KAP) of the pregnant population during the COVID-19 pandemic in a tertiary care hospital.
Methods: This cross-sectional study was conducted at Aga Khan University Hospital, Karachi, Pakistan. KAP towards COVID-19 was assessed using 21-item questionnaires. A score for each category was calculated and points were summed. The outcome variables of KAP were compared with demographic characteristics. Data were analyzed by using SPSS 19.
Results: A total of 377 patients participated in the study. The majority of the patients were multiparous (36.8%) in the age group of …


Emergence Of A Multidrug-Resistant And Virulent Streptococcus Pneumoniae Lineage Mediates Serotype Replacement After Pcv13: An International Whole-Genome Sequencing Study, Stephanie W. Lo, Kate Mellor, Robert Cohen, Alba Redin Alonso, Sophie Belman, Narender Kumar, Paulina A. Hawkins, Rebecca A. Gladstone, Sadia Shakoor, Muhammad Imran Nisar Oct 2022

Emergence Of A Multidrug-Resistant And Virulent Streptococcus Pneumoniae Lineage Mediates Serotype Replacement After Pcv13: An International Whole-Genome Sequencing Study, Stephanie W. Lo, Kate Mellor, Robert Cohen, Alba Redin Alonso, Sophie Belman, Narender Kumar, Paulina A. Hawkins, Rebecca A. Gladstone, Sadia Shakoor, Muhammad Imran Nisar

Department of Pathology and Laboratory Medicine

Background: Serotype 24F is one of the emerging pneumococcal serotypes after the introduction of pneumococcal conjugate vaccine (PCV). We aimed to identify lineages driving the increase of serotype 24F in France and place these findings into a global context.
Methods: Whole-genome sequencing was performed on a collection of serotype 24F pneumococci from asymptomatic colonisation (n=229) and invasive disease (n=190) isolates among individuals younger than 18 years in France, from 2003 to 2018. To provide a global context, we included an additional collection of 24F isolates in the Global Pneumococcal Sequencing (GPS) project database for analysis. A Global Pneumococcal Sequence Cluster …


Frequency Of Bystander Exposure To Antibiotics For Enteropathogenic Bacteria Among Young Children In Low-Resource Settings, Elizabeth T. Rogawski Mcquade, Stephanie A. Brennhofer, Sarah E. Elwood, Timothy L. Mcmurry, Joseph A. Lewnard, Estomih R. Mduma, Sanjaya Shrestha, Najeeha Talat Iqbal, Pascal O. Bessong, Gagandeep Kang Sep 2022

Frequency Of Bystander Exposure To Antibiotics For Enteropathogenic Bacteria Among Young Children In Low-Resource Settings, Elizabeth T. Rogawski Mcquade, Stephanie A. Brennhofer, Sarah E. Elwood, Timothy L. Mcmurry, Joseph A. Lewnard, Estomih R. Mduma, Sanjaya Shrestha, Najeeha Talat Iqbal, Pascal O. Bessong, Gagandeep Kang

Department of Paediatrics and Child Health

Children in low-resource settings carry enteric pathogens asymptomatically and are frequently treated with antibiotics, resulting in opportunities for pathogens to be exposed to antibiotics when not the target of treatment (i.e., bystander exposure). We quantified the frequency of bystander antibiotic exposures for enteric pathogens and estimated associations with resistance among children in eight low-resource settings. We analyzed 15,697 antibiotic courses from 1,715 children aged 0 to 2 y from the MAL-ED birth cohort. We calculated the incidence of bystander exposures and attributed exposures to respiratory and diarrheal illnesses. We associated bystander exposure with phenotypic susceptibility of E. coli isolates in …


Cmv And Ebv Co-Infection In Hiv-Infected Children: Infection Rates And Analysis Of Differential Expression Of Cytokines In Hiv Mono- And Hiv-Cmv-Ebv Co-Infected Groups, Fizza Nazim, Hammad Afzal Kayani, Aspara Ali Nathwani, Fatima Mir, Syed Hani Abidi Aug 2022

Cmv And Ebv Co-Infection In Hiv-Infected Children: Infection Rates And Analysis Of Differential Expression Of Cytokines In Hiv Mono- And Hiv-Cmv-Ebv Co-Infected Groups, Fizza Nazim, Hammad Afzal Kayani, Aspara Ali Nathwani, Fatima Mir, Syed Hani Abidi

Department of Biological & Biomedical Sciences

Background: CMV and EBV co-infections can affect the HIV disease progression by modulating the immune system. The disease dynamics can differ in HIV-positive adults and children. In Pakistan, HIV is rapidly expanding, especially in children; however, the prevalence of CMV and EBV co-infection and the effect on immune modulation in HIV-positive children are not known. This study aimed to bridge this gap by estimating the rate of active CMV and EBV co-infection in HIV-positive children, followed by the analysis of differential expression of cytokines in HIV mono- and HIV/CMV/EBV co-infected children.
Methods: DNA samples from 319 HIV-positive children, previously recruited …


Microplastics In Freshly Fallen Snow: How May It Adversely Impact Human Health And Exacerbate The Covid-19 Crisis?, Ayesha Liaquat, Aleena Kashif, Sushma Rathi, Alishba Raza Aug 2022

Microplastics In Freshly Fallen Snow: How May It Adversely Impact Human Health And Exacerbate The Covid-19 Crisis?, Ayesha Liaquat, Aleena Kashif, Sushma Rathi, Alishba Raza

Medical College Documents

No abstract provided.


"Don't Look Up" Your Science-Herd Immunity Or Herd Mentality?, Botond Z Igyártó Jul 2022

"Don't Look Up" Your Science-Herd Immunity Or Herd Mentality?, Botond Z Igyártó

Department of Microbiology and Immunology Faculty Papers

This analysis piece will attempt to examine some of the critical pandemic-related measures implemented in the United States from an immunological perspective and pinpoint caveats that should have been considered before their implementation. I also discuss alternative measures grounded in scientific data that were not thoroughly explored and likely could have helped fight the pandemic.


Effect Of Bovine Lactoferrin On Seroconversion Following Polio Vaccine Administration In Children: Protocol For A Double-Blinded Randomised Controlled Trial, Atif Habib, Sidrah Nausheen, Shanila Nooruddin, Tooba Javed, Tariq Samejo, Amjad Hussain, Suneeta Namdave, Sehrish Amirali, Muhammad Umer, Lumaan Sheikh May 2022

Effect Of Bovine Lactoferrin On Seroconversion Following Polio Vaccine Administration In Children: Protocol For A Double-Blinded Randomised Controlled Trial, Atif Habib, Sidrah Nausheen, Shanila Nooruddin, Tooba Javed, Tariq Samejo, Amjad Hussain, Suneeta Namdave, Sehrish Amirali, Muhammad Umer, Lumaan Sheikh

Department of Paediatrics and Child Health

Introduction: The oral polio vaccine (OPV) has substantial results in eliminating wild poliovirus and the vaccine of choice in polio eradication. However, the mucosal immunity induced by the OPV is still uncertain. Literature has shown that bovine lactoferrin (BLF) is a safe and useful protein found in cow's milk with extraordinary antimicrobial, antiviral, antiinflammatory and immune-modulatory functions that help children's gut to fight against micro-organisms like poliovirus. However, limited data exist regarding the effect of BLF on polio vaccine immune response. The primary objective is to evaluate the effect of BLF in enhancing mucosal and humoral immunity in children following …


Medical Students In Karachi And Covid-19: Myths And Facts, Omer Bin Khalid Jamil, Muhammad Muhib, Muhammad Anas Abbal, Amna Muhammed Ahmed, Hafsa Hayat Khan, Nabeela Yar Khan May 2022

Medical Students In Karachi And Covid-19: Myths And Facts, Omer Bin Khalid Jamil, Muhammad Muhib, Muhammad Anas Abbal, Amna Muhammed Ahmed, Hafsa Hayat Khan, Nabeela Yar Khan

Department of Surgery

Objectives: COVID-19 pandemic brought mortalities, morbidities, fear, and financial despair among people around the world. As it advanced, misinformation and myths about it caught wildfire, contributing to misbelief among the already shocked population. Medical students are the building blocks of the medical community and can provide a pivotal role in combating COVID-19 misinformation by delivering correct knowledge and awareness to the non-medical population of the country. Hence, it is important to assess their knowledge and perception of COVID-19 myths. Therefore, this study evaluates medical student's knowledge regarding myths and misinformation related to COVID-19 infection and its vaccine. The study also …


Burden, Clinical Characteristics, Risk Factors, And Seasonality Of Adenovirus 40/41 Diarrhea In Children In Eight Low-Resource Settings, Godfrey Guga, Sarah Elwood, Caroline Kimathi, Gagandeep Kang, Margaret N. Kosek, Aldo A M Lima, Pascal O. Bessong, Amidou Samie, Najeeha Talat Iqbal, Zulfiqar Ahmed Bhutta May 2022

Burden, Clinical Characteristics, Risk Factors, And Seasonality Of Adenovirus 40/41 Diarrhea In Children In Eight Low-Resource Settings, Godfrey Guga, Sarah Elwood, Caroline Kimathi, Gagandeep Kang, Margaret N. Kosek, Aldo A M Lima, Pascal O. Bessong, Amidou Samie, Najeeha Talat Iqbal, Zulfiqar Ahmed Bhutta

Department of Biological & Biomedical Sciences

Background: The application of molecular diagnostics has identified enteric group adenovirus serotypes 40 and 41 as important causes of diarrhea in children. However, many aspects of the epidemiology of adenovirus 40/41 diarrhea have not been described.
Methods: We used data from the 8-site Etiology, Risk Factors, and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development Project birth cohort study to describe site- and age-specific incidence, risk factors, clinical characteristics, and seasonality.
Results: The incidence of adenovirus 40/41 diarrhea was substantially higher by quantitative polymerase chain reaction than enzyme immunoassay and peaked at ∼30 episodes …


Characterisation Of Drug-Resistant Mycobacterium Tuberculosis Mutations And Transmission In Pakistan, Gary Napier, Anwar Sheed Khan, Abdul Jabbar, Muhammad Tahir Khan, Sajid Ali, Muhammad Qasim, Noor Mohammad, Rumina Hasan, Zahra Hasan, Susana Campino Apr 2022

Characterisation Of Drug-Resistant Mycobacterium Tuberculosis Mutations And Transmission In Pakistan, Gary Napier, Anwar Sheed Khan, Abdul Jabbar, Muhammad Tahir Khan, Sajid Ali, Muhammad Qasim, Noor Mohammad, Rumina Hasan, Zahra Hasan, Susana Campino

Department of Pathology and Laboratory Medicine

Tuberculosis, caused by Mycobacterium tuberculosis, is a high-burden disease in Pakistan, with multi-drug (MDR) and extensive-drug (XDR) resistance, complicating infection control. Whole genome sequencing (WGS) of M. tuberculosis is being used to infer lineages (strain-types), drug resistance mutations, and transmission patterns-all informing infection control and clinical decision making. Here we analyse WGS data on 535 M. tuberculosis isolates sourced across Pakistan between years 2003 and 2020, to understand the circulating strain-types and mutations related to 12 anti-TB drugs, as well as identify transmission clusters. Most isolates belonged to lineage 3 (n = 397; 74.2%) strain-types, and were MDR (n = …


A Streptococcus Pneumoniae Lineage Usually Associated With Pneumococcal Conjugate Vaccine (Pcv) Serotypes Is The Most Common Cause Of Serotype 35b Invasive Disease In South Africa, Following Routine Use Of Pcv, Kedibone M. Ndlangisa, Mignon Du Plessis, Stephani Lo, Linda De Gouveia, Chrispin Chaguza, Martin Antonio, Brenda Kwambana-Adams, Jennifer Cornick, Dean B. Everett, Sadia Shakoor Apr 2022

A Streptococcus Pneumoniae Lineage Usually Associated With Pneumococcal Conjugate Vaccine (Pcv) Serotypes Is The Most Common Cause Of Serotype 35b Invasive Disease In South Africa, Following Routine Use Of Pcv, Kedibone M. Ndlangisa, Mignon Du Plessis, Stephani Lo, Linda De Gouveia, Chrispin Chaguza, Martin Antonio, Brenda Kwambana-Adams, Jennifer Cornick, Dean B. Everett, Sadia Shakoor

Department of Pathology and Laboratory Medicine

Pneumococcal serotype 35B is an important non-conjugate vaccine (non-PCV) serotype. Its continued emergence, post-PCV7 in the USA, was associated with expansion of a pre-existing 35B clone (clonal complex [CC] 558) along with post-PCV13 emergence of a non-35B clone previously associated with PCV serotypes (CC156). This study describes lineages circulating among 35B isolates in South Africa before and after PCV introduction. We also compared 35B isolates belonging to a predominant 35B lineage in South Africa (GPSC5), with isolates belonging to the same lineage in other parts of the world. Serotype 35B isolates that caused invasive pneumococcal disease in South Africa in …


Etiology, Clinical Characteristics, And Outcome Of Infective Endocarditis: 10-Year Experience From A Tertiary Care Center In Pakistan, Sara Salim Ali, Imran Ahmed Qureshi, Ahmed Ayaz, Ainan Arshad, Awais Farhad, Bushra Jamil, Muhammad Rizwan Sohail Mar 2022

Etiology, Clinical Characteristics, And Outcome Of Infective Endocarditis: 10-Year Experience From A Tertiary Care Center In Pakistan, Sara Salim Ali, Imran Ahmed Qureshi, Ahmed Ayaz, Ainan Arshad, Awais Farhad, Bushra Jamil, Muhammad Rizwan Sohail

Medical College Documents

This study was conducted to assess the clinical characteristics, causative agents, complications, and outcomes of infective endocarditis (IE) among patients presenting to our tertiary care center over the last decade. This retrospective cohort study included all adult patients admitted to the Aga Khan University Hospital with the diagnosis of IE over a ten-year period from 2010 to 2020. Outcomes variables included complications during hospitalization, surgical intervention, mortality, and length of stay. We identified a total of 305 cases out of which 176 (58%) were males and 129 (42%) were females. The mean age of the patients was 46.9±18.8 years. 95 …


Contact Dermatitis Due To Personal Protective Equipment Use And Hygiene Practices During The Covid-19 Pandemic: A Systematic Review Of Case Reports, Zouina Sarfraz, Azza Sarfraz, Muzna Sarfraz, Miguel Felix, Jonathan A. Bernstein, Luz Fonacier, Ivan Cherrez-Ojeda Feb 2022

Contact Dermatitis Due To Personal Protective Equipment Use And Hygiene Practices During The Covid-19 Pandemic: A Systematic Review Of Case Reports, Zouina Sarfraz, Azza Sarfraz, Muzna Sarfraz, Miguel Felix, Jonathan A. Bernstein, Luz Fonacier, Ivan Cherrez-Ojeda

Department of Paediatrics and Child Health

Background: Prolonged use of personal protective equipment (PPE) may lead to contact dermatitis during the coronavirus disease 19 (COVID-19) pandemic. This paper aims to identify the causative factors of contact dermatitis from PPE and hygiene practices.
Methods: The search was conducted adhering to PRISMA 2020 guidelines. A Delphi process was employed to ensure that the aims of this study were met. PubMed and Web of Science databases were systematically searched through September 12, 2021, using search terms: Contact dermatitis, case report, covid-19. The findings were tabulated as author/year, gender, age, presentation, cause, dermatological diagnosis, testing modality, provided treatment, symptom resolution …


The Effect Of Ivermectin On Non-Severe And Severe Covid-19 Disease And Gender-Based Difference Of Its Effectiveness, Syed Muhammad Zubair, Muhammad Waleed Chaudhry, Ali Bin Sarwar Zubairi, Talha Shahzad, Aqusa Zahid, Ibrahim Ali Khan, Javaid Ahmed Khan, Muhammad Irfan Jan 2022

The Effect Of Ivermectin On Non-Severe And Severe Covid-19 Disease And Gender-Based Difference Of Its Effectiveness, Syed Muhammad Zubair, Muhammad Waleed Chaudhry, Ali Bin Sarwar Zubairi, Talha Shahzad, Aqusa Zahid, Ibrahim Ali Khan, Javaid Ahmed Khan, Muhammad Irfan

Section of Pulmonary & Critical Care

The COVID-19 pandemic has led to mortality and morbidity since December 2019. Many possible treatment options have been advised till date. The role of ivermectin in the treatment of COVID-19 disease remains controversial. The aim of our study was to evaluate the effect of ivermectin in hospitalized patients with non-severe and severe COVID-19 disease. We conducted a retrospective cohort study that compared outcomes in 2 groups of COVID-19 patients hospitalized at the largest tertiary care center of Pakistan. The study group was given ivermectin along with standard treatment of covid-19 disease; the comparison group was not. Data on mortality, inflammatory …


Impact Of Pulse Oximetry On Hospital Referral Acceptance In Children Under 5 With Severe Pneumonia In Rural Pakistan (District Jamshoro): Protocol For A Cluster Randomised Trial, Fatima Mir, Apsara Ali, Suhail Chanar, Amjad Hussain, Arjumand Rizvi, Imran Ahmed, Zahid Memon, Atif Habib, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta Sep 2021

Impact Of Pulse Oximetry On Hospital Referral Acceptance In Children Under 5 With Severe Pneumonia In Rural Pakistan (District Jamshoro): Protocol For A Cluster Randomised Trial, Fatima Mir, Apsara Ali, Suhail Chanar, Amjad Hussain, Arjumand Rizvi, Imran Ahmed, Zahid Memon, Atif Habib, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta

Department of Paediatrics and Child Health

Background: Pneumonia is a leading cause of death among children under 5 specifically in South Asia and sub-Saharan Africa. Hypoxaemia is a life-threatening complication among children under 5 with pneumonia. Hypoxaemia increases risk of mortality by 4.3 times in children with pneumonia than those without hypoxaemia. Prevalence of hypoxaemia varies with geography, altitude and severity (9%-39% Asia, 3%-10% African countries). In this protocol paper, we describe research methods for assessing impact of Lady Health Workers (LHWs) identifying hypoxaemia in children with signs of pneumonia during household visits on acceptance of hospital referral in district Jamshoro, Sindh.
Methods and analysis: A …


Vitamin D In Covid-19 Pneumonia: High Yield With Low Risk, Shahan Waheed, Emaduddin Siddiqui Oct 2020

Vitamin D In Covid-19 Pneumonia: High Yield With Low Risk, Shahan Waheed, Emaduddin Siddiqui

Department of Emergency Medicine

No abstract provided.


Molecular Mechanisms Lead To Sex-Specific Covid-19 Prognosis And Targeted Therapies, Thushara Galbadage, Brent M. Peterson, Jeffrey S. Wang, Avishka Jayasekara, Danny A. Ramirez, Joseph Awada, John P. Walsh, Richard S. Gunasekera Jul 2020

Molecular Mechanisms Lead To Sex-Specific Covid-19 Prognosis And Targeted Therapies, Thushara Galbadage, Brent M. Peterson, Jeffrey S. Wang, Avishka Jayasekara, Danny A. Ramirez, Joseph Awada, John P. Walsh, Richard S. Gunasekera

Faculty Articles & Research

Clinical and epidemiological studies have identified male sex as an important risk factor for COVID-19 clinical outcomes and mortality. This raises the question as to how this risk factor can be addressed in the prognosis, clinical management, and the treatment of patients with Coronavirus disease 2019 (COVID-19). Currently, there are no guidelines or protocols to help alter the course of sex-specific COVID-19 prognosis, especially in severe disease presentations. This is partly due to the lack of research studies characterizing the differences in male vs. female host response to the severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2) infection and a lack of …


Delayed Interventions, Low Compliance, And Health Disparities Amplified The Early Spread Of Covid-19, Aliea M. Jalali, Sumaia G. Khoury, Jongwon See, Alexis M. Gulsvig, Brent M. Peterson, Richard S. Gunasekera, Gentian Buzi, Jason Wilson, Thushara Galbadage Jul 2020

Delayed Interventions, Low Compliance, And Health Disparities Amplified The Early Spread Of Covid-19, Aliea M. Jalali, Sumaia G. Khoury, Jongwon See, Alexis M. Gulsvig, Brent M. Peterson, Richard S. Gunasekera, Gentian Buzi, Jason Wilson, Thushara Galbadage

Faculty Articles & Research

The United States (US) public health interventions were rigorous and rapid, yet failed to arrest the spread of the Coronavirus Disease 2019 (COVID-19) pandemic as infections spread throughout the US. Many factors have contributed to the spread of COVID-19, and the success of public health interventions depends on the level of community adherence to preventative measures. Public health professionals must also understand regional demographic variation in health disparities and determinants to target interventions more effectively. In this study, a systematic evaluation of three significant interventions employed in the US, and their effectiveness in slowing the early spread of COVID-19 was …


Invasive Pulmonary Infection By Syncephalastrum Species: Two Case Reports And Review Of Literature, Memoona Irshad, Nosheen Nasir, Urooj Haider Hashmi, Joveria Farooqi, Syed Faisal Mahmood Jul 2020

Invasive Pulmonary Infection By Syncephalastrum Species: Two Case Reports And Review Of Literature, Memoona Irshad, Nosheen Nasir, Urooj Haider Hashmi, Joveria Farooqi, Syed Faisal Mahmood

Section of Internal Medicine

Background: Syncephalastrum species belong to the class Zygomycetes and order Mucorale. These are found in the environment and tropical soil, usually presenting as colonizers and rarely cause human infection. Syncephalastrum racemosum is a species of the genus Syncephalastrum and is the most commonly identified pathogen. Most cases are reported in immunocompromised individuals, such as patients on long term steroids, poorly controlled diabetes, or patients with malignancy.
Case presentation: We are describing two cases of rare fungal infection by Syncephalastrum species causing invasive pulmonary manifestation. Both patients had compromised immune status and presented with worsening dyspnea to the emergency room. Both …


Can Technology Help Improve Diarrhoea Management?, Zulfiqar Ahmed Bhutta May 2020

Can Technology Help Improve Diarrhoea Management?, Zulfiqar Ahmed Bhutta

Woman and Child Health

No abstract provided.


Staphylococcus Aureus May Be Living In Your Nasal Cavity Right Now, Hannah Pedersen Apr 2020

Staphylococcus Aureus May Be Living In Your Nasal Cavity Right Now, Hannah Pedersen

Research and Scholarship Symposium Posters

Staphylococcus aureus is a dual role bacterium and is able to live commensally in some patients, but can cause disease in others. Methicillin resistant S. aureus (MRSA) causes life threatening disease in patients and can be very hard to treat since it is resistant to many antibiotics. In order for S. aureus to wreak havoc on the body, it must be able to have specific genes expressed to secrete toxins. These toxins are what causes the patients to get a wide variety of symptoms like boils, scalded skin, toxic shock syndrome, pneumonia or sepsis. This study tested eleven different isolates …


Prevalence Of The Hypervirulent Nap1/Bi/027 Strain Of C. Difficile In Southwestern Virginia And Risk Factors Associated With Infection, Andrew O. Hanna, Anthony Baffoe-Bonnie, Shikha Vasudeva Jan 2020

Prevalence Of The Hypervirulent Nap1/Bi/027 Strain Of C. Difficile In Southwestern Virginia And Risk Factors Associated With Infection, Andrew O. Hanna, Anthony Baffoe-Bonnie, Shikha Vasudeva

Graduate Medical Education (GME) Resident and Fellow Research Day Posters

C. difficile infection (CDI) incidence has increased over the last several decades. The BI/NAP1/027 ribotype was discovered in 2005 and has since been responsible for multiple outbreaks in the US and Canada. This subtype of C. Difficile is known to be more virulent in vivo and produce more severe disease. Limited regional data of the prevalence of this ribotype is available, which could help guide treatment. Using infection control data from a large regional hospital and a VA medical center, this study documented the prevalence of the 027 ribotype in Southwest Virginia. Patients were included if they were tested at …


Mapping Misinformation In The Coronavirus Outbreak, Ana Santos Rutschman Jan 2020

Mapping Misinformation In The Coronavirus Outbreak, Ana Santos Rutschman

All Faculty Scholarship

The coronavirus outbreak has sent ripples of fear and confusion across the world. These sentiments—and our collective responses to the outbreak—are made worse by rampant misinformation surrounding the new strain of the virus, COVID-2019. In this post, I survey some of the most pervasive areas of tentacular coronavirus-related misinformation that has proliferated online -- as well as the responses of social media companies like YouTube, Facebook, Pinterest and TikTok that may ultimately prove inadequate given the magnitude of the problem.


The Use Of Probiotics To Prevent Ventilator-Associated Pneumonia In Adults, Michael Roper, Paige Douthett Dec 2019

The Use Of Probiotics To Prevent Ventilator-Associated Pneumonia In Adults, Michael Roper, Paige Douthett

Physician Assistant Capstones, 2016 to 2019

Objective: To assess the efficacy and safety of preventing the acquisition of ventilator- associated pneumonia with the use of probiotic supplementation, as compared to a placebo, among hospitalized adult men and women receiving more than 24 hours of mechanical ventilation. Design: Systematic Literature Review. Methods: Systematic searches were conducted through PubMed and Scopus using the search terms “ventilator”, “probiotics”, and “prevention”. Records were excluded from the analysis if they were published before 2015, full text was not available, studies other than randomized control trial or cohort studies, and if the study population was less than 18 years old. Results: Of …


The Essential Role Of Carbon Metabolism In The Virulence Of Cryptococcus Neoformans, Mara Weigner Oct 2019

The Essential Role Of Carbon Metabolism In The Virulence Of Cryptococcus Neoformans, Mara Weigner

Senior Honors Theses

Cryptococcus neoformans infections are a major cause of meningoencephalitis in immunosuppressed patients worldwide. Inhaled as spores or desiccated yeast cells, C. neoformans can undergo metabolic changes in response to the new host environment that allow it to cross the blood brain barrier and cause deadly central nervous system (CNS) infections. Nutrient acquisition, and specifically carbon metabolism, is critical for survival and proliferation within the host. Notably, efficient carbon metabolism is necessary to produce the polysaccharide capsule, which is arguably C. neoformans’ most important and well-studied virulence factor. As such, a better understanding of carbon acquisition and regulation is essential for …