A5066950103- Infection Control and Ventilation
- Infection Control in Healthcare
- Air Quality and Health Impacts
- COVID-19 epidemiological studies
- COVID-19 and healthcare impacts
- Occupational Health and Safety Research
- Occupational and environmental lung diseases
- Workplace Health and Well-being
- Carcinogens and Genotoxicity Assessment
- Fecal contamination and water quality
- Noise Effects and Management
- Environmental Justice and Health Disparities
- Medical Device Sterilization and Disinfection
- Sport and Mega-Event Impacts
- Influenza Virus Research Studies
- Viral Infections and Outbreaks Research
- Indoor Air Quality and Microbial Exposure
- Chemical Safety and Risk Management
- Climate Change and Health Impacts
- Disaster Response and Management
- Sports, Gender, and Society
- COVID-19 and Mental Health
- Occupational exposure and asthma
- Respiratory viral infections research
- Air Quality Monitoring and Forecasting
University of California, Los Angeles
2022-2025
Chelsea and Westminster Hospital NHS Foundation Trust
2022-2025
Temple University
2025
Temple University Health System
2025
Fox Chase Cancer Center
2025
University of Utah
2019-2023
Texas A&M University
2022
University of Illinois Chicago
2012-2021
Rocky Mountain University of Health Professions
2020-2021
University of Illinois System
2021
During the doffing of personal protective equipment (PPE), pathogens can be transferred from PPE to bodies healthcare workers (HCWs), putting HCWs and patients at risk exposure infection. practices who cared for with viral respiratory infections were observed an acute care hospital March 2017 April 2018. A trained observer recorded performance inside patient rooms using a pre-defined checklist based on Centers Disease Control Prevention (CDC) guideline. Doffing 162 times during 52 infected...
The relative contribution of four influenza virus exposure pathways-(1) virus-contaminated hand contact with facial membranes, (2) inhalation respirable cough particles, (3) inspirable and (4) spray droplets onto membranes-must be quantified to determine the potential efficacy nonpharmaceutical interventions transmission. We used a mathematical model estimate contributions pathways infection risk in context person attending bed-ridden family member ill influenza. Considering uncertainties...
Activities such as swimming, paddling, motor-boating, and fishing are relatively common on US surface waters. Water recreators have a higher rate of acute gastrointestinal illness, along with other illnesses including respiratory, ear, eye, skin symptoms, compared to non-water recreators. The quantity costs unknown national scale. Recreational waterborne illness incidence severity were estimated using data from prospective cohort studies water recreation, reports recreational disease...
The routes of COVID-19 transmission to healthcare personnel from infected patients is the subject debate, but critical selection personal protective equipment. objective this paper was explore contributions three routes—contact, droplet, and inhalation—to risk occupationally acquired infection among (HCP). method quantitative microbial assessment, an exposure model, where possible model parameters were based on data specific SARS-CoV-2 virus when available. key finding that droplet...
Atrazine, a common water contaminant in the U.S., has been associated with adverse birth outcomes previous studies. This study aimed to determine if atrazine concentrations drinking are including small for gestational age (SGA), term low weight (term LBW), very (VLBW), preterm (PTB), and (VPTB). included 14,445 live singleton births from Ohio communities served by 22 systems enrolled U.S. Environmental Protection Agency’s Atrazine Monitoring Program between 2006 2008. Mean trimester-specific...
Abstract The coronavirus disease 2019 pandemic highlighted the need for more rapid and routine application of modeling approaches such as quantitative microbial risk assessment (QMRA) protecting public health. QMRA is a transdisciplinary science dedicated to understanding, predicting, mitigating infectious risks. To better equip researchers inform policy health management, an Advances in Research workshop was held synthesize path forward research. We summarize insights from 41 experts...
•Selection of personal protective equipment (PPE) can be systematic and risk-based.•Potential exposures are compared with sites susceptible to infection.•Facilitates transparent decision-making about equipment.•PPE evaluation includes: donning/doffing/changing, usability, fit for purpose. BackgroundPersonal is a primary strategy protect health care personnel (HCP) from infectious diseases. When transmission-based PPE ensembles not appropriate, HCP must recognize the transmission pathway...
Abstract Background Cleaning of environmental surfaces in hospitals is important for the control methicillin-resistant Staphylococcus aureus (MRSA) and other hospital-acquired infections transmitted by contact route. Guidance regarding best approaches cleaning, however, limited. Methods In this study, a mathematical model based on ordinary differential equations was constructed to study MRSA concentration dynamics high-touch low-touch surfaces, hands noses two patients (in rooms) health care...
Abstract Objective: To characterize the magnitude of virus contamination on personal protective equipment (PPE), skin, and clothing healthcare workers (HCWs) who cared for patients having acute viral infections. Design: Prospective observational study. Setting: Acute-care academic hospital. Participants: A total 59 HCWs agreed to have their PPE, clothing, and/or skin swabbed measurement. Methods: The PPE worn by HCW participants, including glove, face mask, gown, stethoscope, were with Copan...
Respiratory viruses on fomites can be transferred to sites susceptible infection via contact by hands or other fomites.Care for hospitalized patients with viral respiratory infections was observed in the patient room 3-hour periods at an acute care academic medical center over a 2 year period. One trained observer recorded healthcare activities performed, contacts fomites, and self-contacts made workers (HCWs), while another fomite of during encounter using predefined checklists.The surface...
Bronchoscopy is classified as an aerosol-generating procedure, but it unclear what drives the elevated infection risk observed among healthcare personnel performing procedure. The objective of this study was to characterize pathways through which bronchoscopists may be exposed infectious agents during bronchoscopy procedures. Aerosol number concentrations (0.2–1 µm aerodynamic diameter) were measured using a P-Trak Ultrafine Particle Counter 8525 and mass (<10 µm) SidePak Personal Monitor...
Abstract Objective: To characterize the presence and magnitude of viruses in air on surfaces rooms hospitalized patients with respiratory viral infections, to explore association between care activities contamination. Design: Prospective observational study. Setting: Acute-care academic hospital. Participants: In total, 52 adult a positive infection test within 3 days observation participated. Healthcare workers (HCWs) were recruited staff meetings at time patient care, 23 wore personal...
Abstract National standards for surgical respirators and masks are written enforced to protect healthcare workers from particles microorganisms such as Severe Acute Respriatory Syndrome Coronavirus 2 (SARS-CoV-2). In addition the ability filter (e.g. filtration efficiency, FE), address breathability differential pressure), how well mask seals a worker’s face fit test), level of protection fluid splash, other factors. Standards used in USA, European Union (EU), China were compared with...
Objective: To summarize antiretroviral therapy (ART) use in the setting of end-stage kidney disease (ESKD). Design: Cross-sectional analysis. Methods: Descriptive analysis ART regimens and dose nucleoside/nucleotide reverse-transcriptase inhibitors (NRTI) people with HIV ESKD (dialysis, transplantation, or estimated glomerular filtration rate (eGFR) <15 mL/min/1.73m 2 ) receiving renal care at five London centres. Exposures interest were dual/unboosted higher than recommended doses...