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. 2022 May 10;2(1):e78. doi: 10.1017/ash.2022.51

Table 2.

Most Frequent Organisms Isolated in Association With COVID-19 Coinfections and Secondary Infections

Organism Coinfection
(n=3,379),
No. (%) a
Secondary Infection
(n=1,565),
No. (%) a
Most commonly identified blood isolates
Candida spp 5 (0.1) 85 (5.4)
Staphylococcus aureus 20 (0.6) 33 (2.1)
Staphylococcus epidermidis 8 (0.2) 25 (1.6)
Enterococcus faecalis 9 (0.3) 23 (1.5)
Escherichia coli 14 (0.4) 12 (0.8)
Enterococcus faecium 4 (0.1) 14 (0.9)
Klebsiella pneumoniae 3 (0.1) 12 (0.8)
Staphylococcus hominis 7 (0.2) 5 (0.3)
Pseudomonas aeruginosa 2 (0.1) 10 (0.6)
Serratia marcescens 0 (0.0) 5 (0.3)
Bacillus 4 (0.1) 0 (0.0)
Streptococcus gallolyticus pasteurianus 3 (0.1) 0 (0.0)
Coinfection
(n=443)
Secondary Infection
(n=816)
Most commonly identified sputum isolates
Staphylococcus aureus 31 (7.0) 135 (16.5)
Pseudomonas aeruginosa 14 (3.2) 59 (7.2)
Klebsiella pneumoniae 3 (0.7) 51 (6.2)
Escherichia coli 4 (0.9) 28 (3.4)
Klebsiella aerogenes 1 (0.2) 30 (3.7)
Streptococcus pneumoniae 20 (4.5) 7 (0.9)
Stenotrophomonas maltophilia 3 (0.7) 24 (2.9)
Enterobacter cloacae 2 (0.5) 15 (1.8)
Aspergillus spp 5 (1.1) 12 (1.5)
Acinetobacter calcoaceticus-baumannii 1 (0.2) 16 (2.0)
Serratia marcescens 0 (0.0) 16 (2.0)
Haemophilus influenzae 7 (1.6) 4 (0.5)
Legionella 4 (0.9) 1 (0.1)
Mycobacterium avium-intracellulare 2 (0.5) 1 (0.1)
a

Number of individuals with organism detected at each site. Percentage of patients infected with each organism over the population of all individuals tested for infection at a given site (with number of individuals tested at top of each column).