- Streptococcal Infections and Treatments
- Orthopedic Infections and Treatments
- Diabetic Foot Ulcer Assessment and Management
- Nosocomial Infections in ICU
- Antibiotic Resistance in Bacteria
- Tuberculosis Research and Epidemiology
- SARS-CoV-2 detection and testing
- Medical Research and Treatments
- Bacterial Identification and Susceptibility Testing
- Metabolomics and Mass Spectrometry Studies
- Mycobacterium research and diagnosis
- Clostridium difficile and Clostridium perfringens research
- Antibiotic Use and Resistance
- Infectious Diseases and Tuberculosis
VA Portland Health Care System
2025
Oregon Health & Science University
2024-2025
South Texas Veterans Health Care System
2021
The University of Texas Health Science Center at San Antonio
2021
Abstract Background Diabetes-related infections and peripheral artery disease are the leading causes of foot amputation worldwide, resulting in significant morbidity mortality. Clinical management practices vary widely. We sought to describe concordance microbiology pathology results among persons undergoing forefoot or midfoot bone resection. Methods conducted a retrospective cohort study adults Veteran’s Administration (VA) care who underwent debridement at VA Portland from January 1, 2017...
Extended-spectrum-beta-lactamase (ESBL)-producing Enterobacteriaceae are increasingly common; however, predicting which patients likely to be infected with an ESBL pathogen is challenging, leading increased use of carbapenems. To date, five prediction models have been developed distinguish between pathogens.
Abstract The value of microbiology and histopathology in the diagnosis neuropathic foot osteomyelitis remains poorly understood. In this retrospective cohort study, we evaluated concordance results from bone resections found similar proportions bacterial growth samples with without histopathologic evidence osteomyelitis.
Abstract Background Non-Tuberculous Mycobacteria (NTM) cause infections in immunocompetent as well immunocompromised individuals affecting pulmonary and extra sites. These pathogens are widely distributed globally recent reports have shown their rise many developed countries. Our study aimed to assess the disease magnitude, describe patient characteristics risk factors, diagnostic therapeutic measures review outcomes furthering our understanding of overall process. Methods We conducted a...
Abstract Background Clostridioides difficile infection (CDI) continues to be a major global public health concern, particularly during the ongoing SARS-CoV-2 coronavirus disease 2019 (COVID-19) pandemic. Despite new social distancing guidelines and enhanced control procedures (e.g., masking, hand hygiene) being implemented since beginning of COVID-19, little evidence indicates whether these changes have influenced prevalence CDI hospitalizations. This study aims measure before COVID-19...
Abstract Background One of the tests used to identify COVID-19 infections is severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) test. There a measure known as cycle threshold (Ct) value, which provides an indirect viral load. It has been proposed that Ct value could help with clinical decisions regarding duration isolation. We hypothesize values will correlate symptom in population veterans infection. Methods...