Jennifer K Johnson

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This study aims to establish preliminary validity of the Prodromal Questionnaire (PQ), a 92-item self-report screening measure for prodromal and psychotic symptoms. Adolescents and young adults (N = 113) referred to a prodromal psychosis research clinic completed the PQ and the Structured Interview for Prodromal Syndromes (SIPS [Miller, T.J., McGlashan,(More)
BACKGROUND The high prevalence of methicillin-resistant S. aureus (MRSA) has led clinicians to select antibiotics that have coverage against MRSA, usually vancomycin, for empiric therapy for suspected staphylococcal infections. Clinicians often continue vancomycin started empirically even when methicillin-susceptible S. aureus (MSSA) strains are identified(More)
For hospital epidemiologists, determining a system of typing that is discriminatory is essential for measuring the effectiveness of infection control measures. In situations in which the incidence of resistant Pseudomonas aeruginosa is increasing, the ability to discern whether it is due to patient-to-patient transmission versus an increase in patient(More)
OBJECTIVE This study evaluates the pattern of neuropsychological deficits and their association with clinical symptomatology and social functioning in individuals identified as ultra-high-risk (UHR) for psychosis. METHODS A sample of 45 UHR individuals was identified using the Structured Interview for Prodromal Syndromes (SIPS) from consecutive referrals(More)
The impact of rapid identification of Candida albicans blood isolates by peptide nucleic acid fluorescence in situ hybridization (PNA FISH) on the selection and expenditure of antifungal therapy was evaluated. PNA FISH was 100% sensitive and specific in the rapid identification of 31 out of 72 candidemias as C. albicans and resulted in a significant(More)
OBJECTIVE Recently developed research criteria have made it possible to identify adolescents at imminent risk for psychosis. However, the array of symptomatology in these patients is broad and has not yet been systematically characterized using established diagnostic and assessment tools. METHOD The authors characterized 24 adolescent research(More)
Until recently, methicillin-resistant Staphylococcus aureus (MRSA) has caused predominantly healthcare-associated infections. We studied MRSA infections and overall skin and soft tissue infections (SSTIs) in outpatients receiving care at the Baltimore Veterans Affairs Medical Center Emergency Care Service during 2001-2005. We found an increase in MRSA(More)
OBJECTIVE This study evaluates longitudinal neuropsychological performance and its association with clinical symptomatology and psychosocial outcome in individuals identified as ultra high risk (UHR) for psychosis. METHODS Thirty-five UHR individuals completed neurocognitive, clinical, and social/role functioning assessments at baseline and, on average,(More)
OBJECTIVE To assess the role of environmental contamination in the transmission of multidrug-resistant bacteria to healthcare workers' clothing. DESIGN Prospective cohort. SETTING Six intensive care units at a tertiary care hospital. SUBJECTS Healthcare workers including registered nurses, patient care technicians, respiratory therapists,(More)
Six cases of Candida dubliniensis fungemia were identified during an 8-month period in hospitalized patients with various conditions, including human immunodeficiency virus infection. Peptide nucleic acid fluorescent in situ hybridization analysis was used as a rapid and reliable test for differentiating C. dubliniensis from Candida albicans, making it(More)