High Incidence of Community-Acquired Pneumonia among Rapidly Aging Population in Japan: A Prospective Hospital-Based Surveillance.

High Incidence of Community-Acquired Pneumonia among Rapidly Aging Population in Japan: A Prospective Hospital-Based Surveillance. Jpn J Infect Dis. 2014;67(4):269-75 Authors: Takaki M, Nakama T, Ishida M, Morimoto H, Nagasaki Y, Shiramizu R, Hamashige N, Chikamori M, Yoshida L, Ariyoshi K, Suzuki M, Morimoto K Abstract The age-group-specific incidence and etiological patterns of community-acquired pneumonia (CAP) have not been fully established in Japan. A 2-year prospective surveillance was conducted in Kochi city, Western Japan. All CAP patients aged ≥15 years who visited a community-based hospital were enrolled in the study. Clinical samples were examined by conventional bacterial culture and urinary antigen tests, and 6 bacterial pathogens and 16 respiratory viruses were identified from sputum samples by multiplex polymerase chain reaction assays. The age-group-specific incidence of CAP was estimated using a population-based data set of the total number of outpatients in the whole city. Ninety of the 131 enrolled patients, 68.7% were positive for respiratory pathogens. Streptococcus pneumoniae was the leading bacterial pathogen identified (28.2%). Respiratory viruses were identified in 36 patients (27.5%), and human entero-rhinovirus was the most common (13.3%) among them. The estimated overall incidence of adult CAP in Kochi was 9.6 per 1,000 person-years (PY); the estimated age group-specific incidence was 3.4, 10.7, and 42....
Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research