Etiology and characteristics of community-acquired pneumonia in an influenza epidemic period

Autor: Yazhen Li, Ping He, Chun Lin, Xiao-yang Jiao, Changwen Ke, Huanzhu Chen
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Comparative Immunology, Microbiology and Infectious Diseases
ISSN: 1878-1667
0147-9571
Popis: Highlights • 1 Not all patients (only 123(63.08%)) have definitely pathogens found. • 2 Non-influenza patients’ co-infection were more common in the peak of Influenza. • 3 The pattern of co-infection in our study is different from previous study. • 4 Yeast, Acinetobacter baumannii and Klebsiella pneumoniae have high positive rate.
Purpose The etiology of community-acquired pneumonia (CAP) in hospital patients is often ambiguous due to the limited pathogen detection. Lack of a microbiological diagnosis impairs precision treatment in CAP. Methods Specimens collected from the lower respiratory tract of 195 CAP patients, viruses were measured by the Single-plex real-time PCR assay and the conventional culture method was exploited for bacteria. Results Among the 195 patients, there were 46 (23.59%) pure bacterial infections, 20 (10.26%) yeast infections, 32 (16.41%) pure viral infections, 8 (4.10%) viral-yeast co-infections, and 17 (8.72%) viral-bacterial co-infections. The two most abundant bacteria were Acinetobacter baumannii and klebsiella pneumoniae, whereas the most common virus was influenza A. Conclusions Non-influenza respiratory microorganisms frequently co-circulated during the epidemic peaks of influenza, which easily being ignored in CAP therapy. In patients with bacterial and viral co-infections, identifying the etiologic agent is crucial for patient’s therapy.
Databáze: OpenAIRE