title: [Etiologic deciphering of community-acquired pneumonia caused by mycoplasma pneumoniae].
abstract: OBJECTIVE
  Use of a complex of methods for etiologic deciphering of an acute respiratory infection.
  
  
  METHODS
  Clinical samples of blood sera, nasopharynx washes and sputum were obtained from 35 patients with acute respiratory disease (ARD). "Difco PPLO Broth" was used for M. pneumoniae cultivation. AHR, IFR, PCR, IFA were used in the study.
  
  
  RESULTS
  Results of the study have shown that M. pneumoniae antigens in blood, sera samples were detected in AHR in 32 patients, and specific G and M class antibodies--in 21 and 18 cases, respectively. Simultaneous detection of IgG and IgM was registered in 14 patients. M. pneumoniae cell DNA was detected in 10 of 20 blood sera samples. Circulating immune complexes were isolated from blood sera of 8 patients (4 with pneumonia, 4 with ARD) and M. pneumoniae antigens were detected in them by using direct-IFR. IFR study of sputum and nasopharynx smears has shown that M. pneumoniae antigens were detected in 29 of 35 samples. In 12 of 15 smear samples M. pneumoniae. DNA was detected by PCR. In 10 cases results of antigen detection by IFR as well as DNA in PCR coincided. Results of analysis of all the clinical material have shown that in 33 of 35 patients positive results coincided for 2 or 3 and in some cases 4 of the laboratory study methods used.
  
  
  CONCLUSIONS
  The use of diagnostic test complex significantly increases the accuracy of the study results, and detection of specific antibodies allows to determine disease period.
authors: L G
authors: LG
authors: Gorina
authors: I V
authors: IV
authors: Rakovskaia
authors: O I
authors: OI
authors: Barkhatova
authors: S A
authors: SA
authors: Goncharova
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000097:blood*; D000936:Antigen-Antibody Complex / Q000097:blood; D000942:Antigens, Bacterial / Q000097:blood*; D017714:Community-Acquired Infections; D019085:Fluorescent Antibody Technique, Direct; D006386:Hemagglutination Tests; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D007075:Immunoglobulin M / Q000097:blood; D008297:Male; D008875:Middle Aged; D009177:Mycoplasma pneumoniae / Q000235:genetics / Q000276:immunology*; D009305:Nasopharynx / Q000382:microbiology; D011019:Pneumonia, Mycoplasma / Q000175:diagnosis* / Q000276:immunology / Q000382:microbiology; D016133:Polymerase Chain Reaction; D013183:Sputum / Q000382:microbiology
chemical_list: D000907:Antibodies, Bacterial; D000936:Antigen-Antibody Complex; D000942:Antigens, Bacterial; D007074:Immunoglobulin G; D007075:Immunoglobulin M