A5006977983- Disaster Response and Management
- Viral Infections and Outbreaks Research
- Infection Control and Ventilation
- Infection Control in Healthcare
- Indoor Air Quality and Microbial Exposure
- Bacillus and Francisella bacterial research
- Disaster Management and Resilience
- Bacterial biofilms and quorum sensing
- Antimicrobial Resistance in Staphylococcus
- Water Treatment and Disinfection
- Occupational Health and Safety Research
- Medical Device Sterilization and Disinfection
- Odor and Emission Control Technologies
- Viral Infections and Vectors
- Dental Research and COVID-19
- Air Quality and Health Impacts
- Climate Change and Health Impacts
- Animal Disease Management and Epidemiology
- Fecal contamination and water quality
- Inhalation and Respiratory Drug Delivery
- Listeria monocytogenes in Food Safety
- Noise Effects and Management
- COVID-19 epidemiological studies
- Bacterial Identification and Susceptibility Testing
- Legionella and Acanthamoeba research
Texas A&M University
2021-2024
Mitchell Institute
2021-2023
Museum of Heilongjiang Province
2021
South London and Maudsley NHS Foundation Trust
2021
Indiana University Bloomington
2015-2020
Texas A&M Health Science Center
2020
University of Nebraska Medical Center
2010-2019
Nebraska Medical Center
2010-2018
Massachusetts General Hospital
2018
Harvard University
2018
In this study we evaluated the levels of antibiotic- and multidrug-resistant bacteria in bioaerosols upwind, within, downwind at locations 25 m, 50 100 150 m from a swine confined animal feeding operation.We used Andersen two-stage samplers to collect bacterial samples, replicate plate method isolate organisms, Kirby-Bauer disk diffusion determine antibiotic resistance.The percentage organisms resistant least two classes all four were, respectively, 2.1 3.0 times higher inside (n = 69) than...
The incidence of community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections is increasing in the United States, and it possible that municipal wastewater could be a reservoir this microorganism. To date, no U.S. studies have evaluated occurrence MRSA wastewater.We examined methicillin-susceptible S. (MSSA) at treatment plants.We collected samples from two Mid-Atlantic Midwest plants between October 2009 2010. Samples were analyzed for MSSA using membrane filtration....
Reclaimed water has emerged as a potential irrigation solution to freshwater shortages. However, limited data exist on the persistence of antibiotics in reclaimed used for irrigation. Therefore, we examined fate nine commonly-used (ampicillin, azithromycin, ciprofloxacin, linezolid, oxacillin, oxolinic acid, penicillin G, pipemidic and tetracycline) differentially treated wastewater from two U.S. regions. We collected 72 samples Mid-Atlantic Midwest treatment plants, well one spray site....
In this study we evaluated the levels of Staphylococcus aureus and antibiotic-resistant S. in colony-forming units (CFU) per cubic meter air.We used Andersen two-stage samplers to collect bioaerosol samples from 24 houses El Paso, Texas, using tryptic soy agar as collection media, followed by replicate plate method on Chapman Stone selective medium isolate aureus. The Kirby-Bauer disk diffusion was determine antibiotic resistance ampicillin, penicillin, cefaclor, which represent two distinct...
Indirect transmission of influenza A virus (IAV) in swine is poorly understood and information lacking on levels environmental exposure encountered by people during outbreaks IAV barns. We characterized viral load, viability persistence air surfaces was detected pigs, from five confirmed with 48% (47/98) oral fluid, 38% (32/84) pen railing 43% (35/82) indoor samples testing positive RT-PCR. isolated fluids yielding a mixture subtypes (H1N1, H1N2 H3N2). Detection RNA sustained the maximum...
Inhalation of microorganisms could be a health concern for workers inside and downwind animal confinement units. Using the Andersen two-stage viable microbial particle sizing sampler, air samples were collected from locations upwind, inside, during two visits to swine herd confined feeding operations. Six taken at each location on site. Bacteria isolated site then tested antibiotic resistance using Kirby-Bauer disc diffusion method. Resistant bacterial forms found facilities, indicating that...
SUMMARY Several previous studies of necrotizing fasciitis (NF) have been single-institution investigations suffering from small samples sizes. This study 216 NF patients hospitalized in Florida, USA, during 2001 was designed to identify risk factors for length stay (LOS), total patient charges (TC), and mortality, using a statewide database. Robust gamma mixed regression used determine the predictors LOS TC while simultaneously accounting outliers clustering 87 hospitals. Relative risks (RR)...
The Nebraska Biocontainment Unit through the Medical Center in Omaha, Nebraska, recently received patients with confirmed Ebola virus from West Africa. and Omaha Fire Department's emergency medical services (EMS) coordinated patient transportation airport to high-level isolation unit. Transportation of these highly infectious capitalized on over 8 years meticulous planning rigorous infection control training ensure safety transport personnel as well community during transport. Although...
The Ebola virus disease outbreak highlighted the lack of consistent guidelines and training for workers outside hospital settings. Specifically, emergency medical services (EMS) workers, who are frequently first professionals to evaluate patients, often do not have advanced notice patient diagnosis, limited time in their national curricula devoted highly infectious (HID) identification containment. All these can place them at increased risk. To explore depth US EMS practitioners' HID...
The objective of this study was to evaluate the levels bacteria in air plume immediately upwind at 25 m and downwind locations m, 50 100 150 from a confined animal feeding operation (CAFO). It hypothesized that would give insight into determining maximal distance bacterial organisms release CAFO could travel, which be important optimal siting for future relation high population areas. Andersen two-stage sampler used collect all samples confinement facilities. data show marked increase...
Beginning in 2003, the Nebraska Medical Center Omaha developed a laboratory capability plan conjunction with creation of biocontainment unit (BCU) for treatment patients harboring emerging infectious organisms.The response planning involved experts at Public Health Laboratory (NPHL), University (UNMC), Department and Human Services (DHHS), Centers Disease Control Prevention (CDC).Special emphasis was placed on diagnostic testing highly contagious pathogenic organisms, including Francisella...
To evaluate the ability of ClO2 to decontaminate pathogens known cause healthcare-associated infections in a hospital room strains Acinetobacter baumannii, Escherichia coli, Enterococcus faecalis, Mycobacterium smegmatis, and Staphylococcus aureus were spot placed duplicate pairs at 10 sites throughout then exposed gas. Organisms collected evaluated for reduction colony forming units following gas exposure. Six sterilization cycles with varied concentrations, exposure limits, relative...
To assess the effect of adenosine triphosphate (ATP) device measurement hospital room cleaning and feedback pooled results to environmental service workers (EVS) improve efficacy.Nonrandomized controlled trial conducted over 20 months.Three hospitals varying size.EVS workers, randomly selected on basis convenience sample rooms.Environmental cleanliness composite scores were combined with layered educational interventions used provide EVS specific units. Trends in efficacy observed after...
To describe current Ebola treatment center (ETC) locations, their capacity to care for virus disease patients, and infection control infrastructure features.A 19-question survey was distributed electronically in April 2015. Responses were collected via email by June 2015 analyzed an electronic spreadsheet.The sent completed site representatives of each ETC.The all 55 ETCs; 47 (85%) responded.Of the responding ETCs, there are 84 isolation beds available adults 91 children; these pediatric...