Monthly detection of pathogens among the CAP patients detected from August 1, 2014 to July 31, 2016. (A) Monthly detection rate of 9 viruses together among all CAP patients; (B) the frequency of patients in whom parainfluenza virus, human bocavirus, human rhinovirus, coronavirus, influenza virus, and human metapneumovirus were detected; (C) the frequency of patients in whom adenovirus, respiratory syncytial virus, enterovirus, M. pneumoniae, and C. pneumoniae were detected. Note the difference in scale of the y axis for each line graph. CAP, community-acquired pneumonia.