title: [Importance of Chlamydia pneumoniae as a new respiratory pathogen].
abstract: The incidence of Chlamydia pneumoniae as a cause of respiratory tract infection was evaluated in a one-year prospective study in 142 patients with community-acquired pneumonia. An indirect immunofluorescence method which detects antibodies in acute and convalescent serum samples was used. Serological evidence of current infection was a four-fold rise in IgG antibody titer or a positive IgM fraction. C. pneumoniae was the causative pathogen in nine patients. This result is similar to those obtained in other studies and suggests that C. pneumoniae is a common etiological agent of community-acquired pneumonia in the studied area.
authors.affiliation: Departamento de Microbiología, Facultad de Biología, Universidad de Santiago de Compostela, España.
authors.forename: C
authors.initials: C
authors.lastname: Bartolomé
authors.forename: M
authors.initials: M
authors.lastname: Mata
authors.forename: I
authors.initials: I
authors.lastname: Bernárdez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000907:Antibodies, Bacterial / Q000097:blood; D002648:Child; D002675:Child, Preschool; D002690:Chlamydia Infections / Q000453:epidemiology* / Q000382:microbiology; D016993:Chlamydophila pneumoniae / Q000276:immunology / Q000302:isolation & purification; D017714:Community-Acquired Infections / Q000453:epidemiology* / Q000382:microbiology; D005260:Female; D019084:Fluorescent Antibody Technique, Indirect; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D007075:Immunoglobulin M / Q000097:blood; D007223:Infant; D008297:Male; D008875:Middle Aged; D018410:Pneumonia, Bacterial / Q000453:epidemiology* / Q000382:microbiology; D013030:Spain / Q000453:epidemiology
chemical_list: D000907:Antibodies, Bacterial; D007074:Immunoglobulin G; D007075:Immunoglobulin M