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      Five cases of nosocomial and community-acquired legionnaires' disease in São Paulo, Brazil Translated title: Cinco casos de doença dos legionários comunitária e hospitalar em São Paulo, Brasil

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          Abstract

          Legionella sp has been emerging over the last decade as an important cause of pneumonia both hospital and community-acquired. Following an outbreak in a Renal - Transplant Unit stocked serum was tested for antibodies against Legionella pneumophila serogroup 1, and 5 cases of Legionnaires' Disease were reviewed. Two of the cases were nosocomial and three cases were community - acquired. Clinical and laboratorial aspects were similar to those expected for other causes of pneumonia, however jaundice was encountered in two cases. This study suggests that the real incidence of pneumonia caused by Legionella sp is being underestimated and the authors emphasize the importance of considering Legionnaires' Disease when empirically treating community - acquired pneumonia

          Translated abstract

          Na última década, a Legionella sp tem surgido como uma causa importante de pneumonia, tanto hospitalar quanto comunitária. Depois da detecção de um surto hospitalar numa unidade de Transplantados Renais, amostras de soro estocado em laboratório foram testadas para anticorpos anti-Legionella pneumophila sorogrupo 1. Cinco casos de Doença dos Legionários foram revistos. Os aspectos clínicos e laboratoriais eram semelhantes aos esperados em pneumonias de outras etiologias, mas houve a presença de icterícia importante em 2 casos. Dentre os 5 casos apresentados neste estudo, 2 foram de aquisição nosocomial e 3 foram comunitários. Já foi descrito um surto de infecção hospitalar por Legionella pneumophila sorogrupo 1 no nosso meio³. Em 1989 foi descrito o primeiro caso de pneumonia por Legionella pneumophila no nosso meio². No entanto pouca importância é dada a este agente etiológico quando se considera o tratamento empírico das pneumonias comunitárias. Este estudo sugere que a real incidência de pneumonia causada por Legionella sp está sendo subestimada e os autores enfatizam a importância de considerar a Doença dos Legionários no tratamento empírico de pneumonias adquiridas na comunidade

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          Fatal pneumonia caused by Legionella pneumophila, serogroup 3: demonstration of the bacilli in extrathoracic organs.

          An immunosuppressed patient with malignant lymphoma died of acute pneumonia caused by Legionella pneumophila. Bacilli of serogroup 3 were detected in areas of pnemonia, in a mediastinal lymph node, and in the liver and spleen by direct immunofluorescence done on tissue obtained at autopsy. That the extrathoracic fluorescent material represented intact bacteria rather than antigenic fragments or antigen-antibody complexes was confirmed by finding intracellular bacilli in the liver by electron microscopy. To our knowledge, this case represents the first example of fatal disease attributed to serogroup 3 L. pneumophila and the first case in which L. pneumophila has been demonstrated in extrathoracic organs.
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            Fatal legionnaires' pneumonia: Frequency of legionellosis in autopsied patients with pneumonia from 1969 to 1985

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              • Record: found
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              Incidence and clinical features of community - acquired legionellosis in hospitalized patients

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rimtsp
                Revista do Instituto de Medicina Tropical de São Paulo
                Rev. Inst. Med. trop. S. Paulo
                Instituto de Medicina Tropical (São Paulo )
                1678-9946
                February 1993
                : 35
                : 1
                : 103-106
                Article
                S0036-46651993000100015
                10.1590/S0036-46651993000100015
                28e87595-7d79-4804-bb43-82deef563353

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0036-4665&lng=en
                Categories
                TROPICAL MEDICINE

                Infectious disease & Microbiology
                Nosocomial pneumonia,Legionnaires' Disease,community-acquired pneumonia,Legionella pneumophila serogroup 1

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