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Ampicillin (Omnipen)
Ampicillin (Omnipen)
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Microorganism
MIC50
(μg/ml)
MIC90
(μg/ml)
Range
(μg/ml)
Reference
Haemophilus influenzae
(non-ESBL + ampicillin-susceptible)
0.25
0.25
≤0.12 - 0.5
267
Haemophilus influenzae
(non-ESBL)
0.12
0.25
≤0.12 - 0.25
186
Haemophilus influenzae
(non-ESBL)
0.12
0.5
0.03 - 2
114
Haemophilus influenzae
(non-ESBL)
0.25
1
≤0.25 - 4
499
Haemophilus influenzae
(non-ESBL)
>32
>32
0.5 - >32
119
Haemophilus influenzae
(VHIN6529)
-
-
2 - ?
88
Haemophilus influenzae
(VHIN6536)
-
-
2 - ?
88
Haemophilus influenzae
(β-lactamase negative)
0.5
1
0.12 - 1
462
Haemophilus influenzae
(β-lactamase positive)
>8
>8
>8 - ?
462
Haemophilus parahaemolyticus
>0.5
>4
0.12 - >4
493
Haemophilus parainfluenzae
>0.5
>4
0.12 - >4
493
Haemophilus parasuis
(Spain)
>16
>16
0.25 - 32
768
Haemophilus parasuis
(UK)
0.25
2
0.25 - 4
768
Haemophilus
spp.
-
-
0.06 - 128
401
Hafnia alvei
>8
>8
4 - >8
462
Helicobacter pullorum
-
-
0.5 - 4
831
Helicobacter pylori
0.008
0.03
<0.002 - 0.12
662
Helicobacter pylori
0.015
0.03
<0.003 - 0.03
662
Helicobacter pylori
0.05
0.1
0.05 - 1.56
662
Helicobacter pylori
-
-
<0.025 - ?
1387
Helicobacter pylori
-
-
<0.025 - ?
1387
Helicobacter pylori
(ATCC 43579)
-
-
0.03 - 0.06
250
Helicobacter pylori
(pH 5.5)
-
-
0.5 - ?
658
Helicobacter pylori
(pH 6.0)
-
-
0.25 - ?
658
Helicobacter pylori
(pH 7.5)
-
-
0.06 - ?
658
Klebsiella pneumonia
>8
>8
>8 - ?
462
Klebsiella pneumonia
>32
>32
4 - >32
42
Klebsiella pneumonia
>32
>32
16 - >32
186
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