Female | Male | Total positive cultures | |
Subjects | 836 | 1368 | |
Streptococcus pneumoniae | 356 (43) | 514 (38) | 870 |
Pandemic 2009 (H1N1) influenza A# | 159 (19) | 165 (12) | 295 |
Staphylococcus aureus | 239§ | ||
MRSA | 27 (3) | 84 (5) | 111 |
MSSA | 30 (4) | 54 (4) | 84 |
Atypical pathogens | 153 | ||
Chlamydia spp.¶ | 8 (<1) | 10 (<1) | 18 |
Legionella spp. | 25 (3) | 65 (5) | 90 |
Mycoplasma pneumoniae | 21 (3) | 24 (3) | 45 |
Haemophilus influenzae | 38 (5) | 96 (7) | 128 |
Pseudomonas aeruginosa | 25 (3) | 67 (5) | 92 |
Klebsiella pneumoniae | 15 (4) | 47 (3) | 62 |
Escherichia coli | 17 (2) | 27 (2) | 44 |
Moraxella catarrhalis | 18 (2) | 26 (2) | 44 |
Other+ | 739 (88) | 1179 (86) | 1918 |
Data are presented as n or n (%). Proportion is relative to the number of patients, not the number of specimens. Of the 2204 patients, 205 patients were co-infected, therefore, the sum of proportions in each region is >100%. MRSA: methicillin-resistant S. aureus MSSA: methicillin-sensitive S. aureus. #: among 274 cases, 295 (93%) were confirmed; ¶: all cases were C. pneumoniae except for one, which was C. psittaci; +: other organisms isolated were: Acinetobacter spp., adenovirus, Aspergillus spp., Candida spp., coagulase-negative Staphylococcus, Cryptococcus neoformans, Enterobacter spp., Enterococcus faecalis, untyped or H3N1 influenza, metapneumovirus, mixed anaerobic bacteria, nontuberculous bacteria, Paragonimus westermani, parainfluenza virus 1 and 4, Pneumocystis jiroveci; Proteus spp., Pseudomonas pseudomallei, respiratory syncytial virus A and B, rhinovirus/enterovirus, Salmonella spp., Serratia spp. and Streptococcus pyogenes; §: sensitivity information was not available for 44 subjects.