LEGIONNAIRES DISEASE - ISOLATION OF A BACTERIUM AND DEMONSTRATION OF ITS ROLE IN OTHER RESPIRATORY-DISEASE
LEGIONNAIRES DISEASE - ISOLATION OF A BACTERIUM AND DEMONSTRATION OF ITS ROLE IN OTHER RESPIRATORY-DISEASE
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DOI:
10.1056/nejm197712012972202
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发表时间:
1977-01-01
影响因子:
158.5
通讯作者:
DOWDLE, WR
中科院分区:
文献类型:
--
作者:
MCDADE, JE;SHEPARD, CC;DOWDLE, WR
To identify the etiologic agent of Legionnaires'' disease, patients'' serum and tissue specimens were examined in a search for toxins, bacteria, fungi, chlamydiae, rickettsiae and viruses. From the lungs of 4 of 6 patients a gram-negative, non-acid-fast bacillus was isolated in guinea pigs. The bacillus could be transferred to yolk sacs of embryonated [chicken] eggs. Classification of this organism is incomplete. Yolk-sac cultures of the bacillus were used as antigen to survey suspected serum specimens, employing antihuman-globulin fluorescent antibody. When compared to controls, specimens from 101 of 111 patients meeting clinical criteria of Legionnaires'' disease showed diagnostic increases in antibody titers. Diagnostic increases were also found in 54 recent sporadic cases of severe pneumonia and, retrospectively, in stored serum from most patients in 2 other previously unsolved outbreaks of respiratory disease. Legionnaires'' disease is apparently caused by a gram-negative bacterium that may be responsible for widespread infection.