1,720,967 research outputs found
Nosocomial legionellosis associated with use of oxygen bubble humidifiers and underwater chest drains
No full textIn 1 year 12 of 48 patients who developed fatal pneumonia following admission with non-respiratory disorders to the Hospital Molinette, Torino, yielded Legionella pneumophila serogroup 1 from lung at autopsy. Patients were hospitalized on seven different wards for different conditions; only two of the wards had air conditioning but legionellas were not isolated from these. All patients were in poor health or immunocompromised. Some patients had inhaled humidified oxygen from piped supplies and three had undergone surgery. Legionella pneumophila serogroup 1 was detected in the water of oxygen bubble humidifiers and an underwater chest drain. The contaminated devices had been filled with tap or distilled water and the hospital water supply was found to be contaminated with L. pneumophila serogroup 1. Our findings suggest that filling bubble humidifiers or underwater chest drains with tap water is a potential hazard and should be avoided
Legionnaires' disease on a cruise ship linked to the water supply system: Clinical and public health implications
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Effect of sub-inhibitory concentrations of antibiotics on the hemolytic activity of Legionella
No full textLegionella pneumophila serogroup 5 infection in the presence of multiple environmental contamination. The importance of a bacteriological diagnosis
No full textLegionella pneumophila is a pathogen that causes severe pneumonia in humans; L. pneumophila serogroup
1 accounts for at least 90% of infections. This is not linked to an environmental predominance of Legionella
pneumophila 1, but may be due to a greater virulence of the strain. L. pneumophila sg 5 has also been
reported, albeit less frequently, to be a cause of the disease. We report a case of L. pneumophila sg 5
occurring in a large hospital in southern Italy (Apulia region), where both L. pneumophila sg 1 and sg 5 were
detected in the water supply; the nosocomial origin was demonstrated by molecular subtyping (PFGE). An
environmental investigation, performed immediately after diagnosis of the case of legionellosis, identified a
low L. pneumophila sg 5 contamination level. Our experience highlights that in hospital, risk assessment, in
order to institute control measures for Legionella, should be carried out not only in response to a case of the
disease and/or in risk wards only, as described in the Italian Guidelines, but periodically in every ward. The
present study confirms that, although in the community L. pneumophila sg 1 is the most frequent strain
isolated in both outbreaks and isolated cases, in hospital other serogroups and species may often cause
infection because of the high susceptibility of the hosts
Legionella pneumophila in a hospital in Torino, Italy. A retrospective one-year study
No full textLegionella pneumophila serogroup 1 was isolated from post mortem specimens from 13 out of 58 patients with pneumonia diagnosed at autopsy. The results of a study undertaken in the hospital environment showed that the water plumbing system was colonized with L. pneumophila serogroup 1 which could also be isolated from respiratory devices filled with tap water. Control measures instituted are described
Molecular epidemiology of an outbreak of Legionnaires' disease associated with a cooling tower in Genova-Sestri Ponente, Italy
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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