Research Article
Changes in Respiratory Pathogens before and after the COVID-19 Pandemic (2018–2021)
Table 3
Number and isolation frequency of bacteria and fungi identified in sputum, bronchial aspirate, and transtracheal aspirate samples by year.
| | Organism | 2018 (%) | 2019 (%) | 2020 (%) | 2021 (%) | Total (%) |
| | Staphylococcus aureus | 415 (22.8) | 384 (22.1) | 294 (21.5) | 327 (22.4) | 1,420 (22.2) | | Acinetobacter baumannii complex | 355 (19.5) | 332 (19.1) | 184 (13.4) | 207 (14.2) | 1,078 (16.9) | | Pseudomonas aeruginosa | 214 (11.8) | 275 (15.8) | 266 (19.4) | 199 (13.6) | 954 (14.9) | | Klebsiella pneumoniae | 273 (15.0) | 205 (11.8) | 182 (13.3) | 235 (16.1) | 895 (14.0) | | Candida albicans | 76 (4.2) | 104 (6.0) | 104 (7.6) | 99 (6.8) | 383 (6.0) | | Streptococcus pneumoniae | 65 (3.6) | 102 (5.9) | 38 (2.8) | 28 (1.9) | 233 (3.7) | | Escherichia coli | 57 (3.1) | 45 (2.6) | 32 (2.3) | 57 (3.9) | 191 (3.0) | | Stenotrophomonas maltophilia | 52 (2.9) | 31 (1.8) | 38 (2.8) | 35 (2.4) | 156 (2.4) | | Enterobacter aerogenes | 39 (2.1) | 26 (1.5) | 23 (1.7) | 49 (3.4) | 137 (2.1) | | Proteus mirabilis | 19 (1.0) | 41 (2.4) | 43 (3.1) | 27 (1.9) | 130 (2.0) | | Streptococcus agalactiae-(group B) | 36 (2.0) | 29 (1.7) | 29 (2.1) | 21 (1.4) | 115 (1.8) | | Haemophilus influenzae | 35 (1.9) | 38 (2.2) | 20 (1.5) | 4 (0.3) | 97 (1.5) | | Enterobacter cloacae Complex | 30 (1.7) | 17 (1.0) | 14 (1.0) | 24 (1.6) | 85 (1.3) | | Moraxella catarrhalis | 23 (1.3) | 9 (0.5) | 6 (0.4) | 1 (0.1) | 39 (0.6) | | Aspergillus spp. | 9 (0.5) | 13 (0.8) | 5 (0.4) | 9 (0.6) | 36 (0.6) | | Others | 124 (6.8) | 87 (5.0) | 91 (6.7) | 138 (9.5) | 440 (6.9) | | Total | 1,822 (100) | 1,738 (100) | 1,369 (100) | 1,460 (100) | 6,389 (100) |
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