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Table 1 Characteristics of mucoid and non-mucoid A. baumannii isolates and summary of results

From: Rapid identification of capsulated Acinetobacter baumannii using a density-dependent gradient test

  Sample Origin Clonal complex1 Density-dependent gradient2 Total carbohydrates (μg/mL) Capsule thickness (nm)3
Non-mucoid4 AB01 Sputum ST3 Non-capsulated7 44.0 ± 1.67
AB02 Blood ST3 Non-capsulated 35.3 ± 0.79
AB03* Blood ST2 Non-capsulated 53.7 ± 2.45
AB04 Rectal ST3 Non-capsulated 74.8 ± 2.27
AB05 Skin ST3 Non-capsulated 83.7 ± 2.11
AB06 Blood N/D5 Non-capsulated 66.5 ± 1.39
AB07 Blood N/D Non-capsulated 84.5 ± 2.24
AB08 Blood ST2 Non-capsulated 75.9 ± 1.24
AB09 Sputum ST3 Non-capsulated 39.0 ± 10.81
AB10* Blood N/D Non-capsulated 43.1 ± 2.20
AB11 Sputum ST3 Non-capsulated 54.8 ± 2.02 0
AB12 Blood ST2 Non-capsulated 55.2 ± 1.56
AB13 Blood N/D Non-capsulated 64.5 ± 2.01
AB14 Rectal ST2 Non-capsulated 63.6 ± 1.78
AB15 Skin ST2 Non-capsulated 84.4 ± 2.54
AB16 Blood ST2 Non-capsulated 72.3 ± 1.56
AB17 Blood ST3 Non-capsulated 64.4 ± 2.27
AB18 Blood N/D Non-capsulated 45.0 ± 1.56
AB19 Pus ST2 Non-capsulated 56.6 ± 1.65
AB20 Blood ST3 Non-capsulated 65.4 ± 2.43
AB21 Blood N/D Non-capsulated 28.0 ± 4.15
AB22 Skin ST2 Non-capsulated 49.1 ± 1.79
AB23 Wound ST2 Non-capsulated 51.5 ± 1.59
AB24 Sputum ST3 Capsulated 254.3 ± 5.65
AB25 Sputum ST3 Capsulated 262.2 ± 12.2
AB26 Blood ST3 Capsulated 257.8 ± 5.48
ATCC 19606* Urine ST52 Non-capsulated 34.5 ± 1.66 0
Mucoid4 AB27 Skin ST3 Capsulated 212.8 ± 8.77
AB28 Skin ST3 Capsulated 426.5 ± 6.39
AB29* Blood ST3 Capsulated 356.4 ± 4.61
AB30 Wound ST3 Capsulated 351.2 ± 5.44
AB31 Blood ST3 Capsulated 191.4 ± 6.14
AB32 Sputum ST3 Capsulated 240.0 ± 14.97
AB33 Skin ST3 Capsulated 412.0 ± 9.25
AB34* Skin ST3 Capsulated 356.8 ± 7.85 92 ± 8
AB35 Blood ST3 Capsulated 317.3 ± 8.51
AB36 Rectal ST3 Capsulated 286.7 ± 8.98
AB37 Rectal ST3 Capsulated 290.6 ± 9.44
AB38 Blood ST3 Capsulated 166.7 ± 7.59
AB39 Blood ST3 Capsulated 275.2 ± 6.66
AB40 Sputum ST2 Capsulated 319.4 ± 9.78
AB41 Blood ST3 Capsulated 132.9 ± 7.32
AB42 Skin ST3 Capsulated 338.4 ± 11.11
AB43 Blood ST3 Capsulated 247.4 ± 7.40 122 ± 6
AB44 Blood ST3 Capsulated 261.0 ± 5.58 92 ± 13
AB45* Blood N/D Capsulated 207.7 ± 5.39
AB46 Blood ST3 Capsulated 364.7 ± 16.48
AB47 Wound ST3 Capsulated 316.6 ± 8.47
AB48* Blood ST3 Capsulated 174.9 ± 40.31
AB49 Wound N/D Capsulated 157.6 ± 6.37
AB50 Tracheal aspirate N/D Capsulated 226.5 ± 17.51
AB51 Tracheal aspirate N/D Capsulated 254.1 ± 9.04
AB52 Tracheal aspirate N/D Capsulated 182.2 ± 9.45
AB53 Sputum ST3 Capsulated 264.2 ± 13.25
AB54 Sputum ST3 Capsulated 353.4 ± 15.07
AB55 BAL6 N/D Capsulated 132.3 ± 12.64
AB56 Sputum N/D Capsulated 118.5 ± 16.17
AB57 Sputum N/D Capsulated 130.7 ± 10.01
CAP-AB* Blood ST3 Capsulated 290.6 ± 9.53 96 ± 11
HM-KP* Liver Abscess K1 Capsulated
  1. 1Pasteur scheme; 2Length of migration: thin or non-capsulated if > 16 mm, suspected as capsulated if 0–16 mm; 3Determined by TEM; 4Determined by visual observation; 5Not determined; 6Bronchoalveolar lavage; 7Non-capsulated refers to an isolate with a thin capsule or no capsule; *Isolates used for validation of the density-dependent gradient test