Barbara A. Hackman

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BACKGROUND Pneumonia is the leading cause of death due to infectious diseases in the United States; however, the incidence of most infections causing community-acquired pneumonia in adults is not well defined. METHODS We evaluated all adults, residing in 2 counties in Ohio, who were hospitalized in 1991 because of community-acquired pneumonia. Information(More)
Large percentages of patients with community acquired pneumonia (CAP) do not have a defined etiology. Between 1992-1993, 99 acute and convalescent sera were collected from patients with CAP of unknown etiology. The sera were tested using an indirect immunofluorescence antibody assay (IFA) against the following antigens: Legionella pneumophila, serogroups(More)
Shower heads and hot-water faucets containing Legionella pneumophila were evaluated for aerosolization of the organism with a multistage cascade impaction air sampler. Air was collected above two shower doors and from the same rooms approximately 3 ft (91 cm) from the shower doors while the hot water was running. Low numbers (3 to 5 CFU/15 ft3 [0.43 m3] of(More)
Cases of Legionnaires' disease have been categorized as definitive and presumptive. The sensitivity and specificity of antibody titers of > or = 256 and of urinary antigen ratios of > or = 3 were evaluated in 68 patients with "definitive" Legionnaires' disease and in 636 patients with pneumonia who had negative cultures and did not have fourfold rises in(More)
From January, 1982, through February, 1983, 20 cases of nosocomial legionnaires' disease caused by Legionella pneumophila serogroup 1 were identified in two adjoining hospital buildings, UH and RH. Although the buildings housed similar patient populations and the hot water systems in each were colonised with similar numbers of L pneumophila serogroup 1, 19(More)
BACKGROUND The AIDS and Cancer Specimen Resource (ACSR) is an HIV/AIDS tissue bank consortium sponsored by the National Cancer Institute (NCI) Division of Cancer Treatment and Diagnosis (DCTD). The ACSR offers to approved researchers HIV infected biologic samples and uninfected control tissues including tissue cores in micro-arrays (TMA) accompanied by(More)
The Legionella Urinary Antigen EIA kit (Binax, Portland, Maine) was compared with the EQUATE RIA Legionella Urinary Antigen kit (Binax) for its ability to detect the presence of urinary antigens to Legionella pneumophila serogroup 1. Urine specimens from patients without Legionnaires' disease (n = 33) were negative by both methods (specificity, 100%).(More)
Twenty-two urine samples positive for Legionella pneumophila serogroup 1 antigen by EQUATE radioimmunoassay (RIA) (Binax, Portland, ME, USA) were stored at various temperatures and the RIA repeated at 1, 7, 30, 90, and 120 days to evaluate stability of the urinary antigens. The mean ratios of patient/negative control remained stable. Although there was a(More)
Isolates of Legionella from 98 patients with Legionnaires' disease hospitalized in Columbus, Ohio, USA between 1991 through 1995 were tested for antimicrobial susceptibility to macrolides and quinolones using the Etest. Most (87%) isolates were Legionella pneumophila serogroup 1. All isolates tested remain susceptible to erythromycin, azithromycin,(More)