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The sera of 19 patients with a febrile disease of undetermined etiology were positive in the indirect immunofluorescence assay (IFA) to Legionella bozemanii serogroup 1 (Lb) and Rickettsia typhi (Rt). To both antigens, high titers of IgG-class and IgM-class antibodies were demonstrated. Several of the patients also had positive IFA and Weil-Felix reactions(More)
The prevalence of seropositivity to Legionella species was studied in 184 children with bronchial asthma and 80 control children, age and sex matched, without respiratory tract infections. The sera were examined by indirect immunofluorescence with antigens of six Legionella species. The asthmatic children showed a significantly high percentage of(More)
A 63-year-old man was admitted to the respiratory intensive care unit for pneumonia. Fifteen years earlier, hairy cell leukemia had been diagnosed and the patient underwent splenectomy. A clinical suspicion of legionellosis, later confirmed by both serology and isolation of the microorganism, prompted initiation of high dose erythromycin intravenously. The(More)
The immune response to individual major antigens of Legionella bozemanii was studied in 67 sera from 26 inpatients with febrile disease using immunoblotting techniques. All the patients had fever of unknown origin and showed strong serological reactions to L bozemanii that cross-reacted with Rickettsia typhi, as determined by a standard indirect(More)
Infection with Legionella remains an important cause of disease and death. We analyzed our laboratory data from 1993 through 1997, augmented by our 20 years of experience. The incidence of Legionella as a cause of pneumonia varied in our study from 5%-9%, with a slight increase during the winter. Isolation of these microorganisms from different water(More)
During a 15-year period, 146 strains of Aeromonas spp. were isolated from 32810 faecal specimens from 13,820 hospitalised patients up to 13 years of age. These isolates constituted 4% of all the pathogenic bacterial strains cultured. For the years 1978-1988, the files of children with gastro-enteritis revealed 81 whose faeces yielded Aeromonas spp. Most of(More)
The prevalence of seropositivity to Legionella spp. was studied in 184 children with bronchial asthma and in 80 control children, age- and sex-matched, without respiratory tract infections. The sera were examined by indirect immunofluorescence with antigens of six Legionella spp. The asthmatic children showed a significantly higher percentage of(More)
Two patients with pneumonitis due to legionellosis are described. The etiologic diagnosis was based on high titers of immunoglobulin (Ig)M class antibodies (1/2048 and 1/512) detected by indirect immunofluorescence. The etiologic agents were presumed to be Legionella bozemanii in one case and either L. bozemanii or L. longbeachae in the other. Both patients(More)
A study of seroreactivity to six Legionella species (L. pneumophila, L. longbeachae, L. micdadei, L. gormanii, L. dumoffii and L. bozemanii) performed in two geriatric hospitals, a day club for the aged and a group of aged with independent life styles revealed a high prevalence of seropositivity in the hospitals. A titer of 1:256 to at least one antigen was(More)
The immune response to individual major antigens of Legionella bozeman'i was studied in 67 sera from 26 inpatients with febrile disease using immunoblotting techniques. All the patients had fever of unknown origin and showed strong serological reactions to L bozemanii that cross-reacted with Rickettsia typhi, as determined by a standard indirect(More)
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