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Table 2 Panels of drug non-susceptibility in multiple drug resistant (MDR) and extensive drug resistant (XDR) Haemophilus influenzae isolates

From: Extensively drug-resistant Haemophilus influenzae – emergence, epidemiology, risk factors, and regimen

 

Penicillin

β-lactam combination agent

Phenicol

Cephem

Fluoroquinolone

Folate pathway antagonist

 

Ampicillin

Amoxicillin-clavulanate

Chloramphenicol

Cefotaxime

Cefuroxime

Levofloxacin

Trimethoprim-sulfamethoxazole

n

MDR

V

 

V

   

V

190

V

 

V

  

V

V

83

V

V

    

V

81

V

V

V

   

V

43

V

V

  

V

 

V

26

V

V

   

V

V

25

V

V

  

V

  

24

V

    

V

V

14

V

V

 

V

V

 

V

14

V

V

 

V

V

  

7

  

V

  

V

V

6

V

V

 

V

   

6

V

   

V

V

V

6

V

 

V

  

V

 

5

V

V

 

V

  

V

5

V

V

V

    

4

    

V

V

V

3

V

 

V

 

V

  

3

V

   

V

 

V

3

V

 

V

 

V

 

V

3

V

  

V

  

V

2

V

V

   

V

 

2

V

   

V

V

 

1

V

V

V

V

V

  

1

XDR

V

V

  

V

V

V

12

V

V

V

 

V

 

V

11

V

V

V

  

V

V

9

V

V

V

 

V

V

V

8

V

V

 

V

V

V

V

6

V

V

V

V

V

 

V

3

V

 

V

 

V

V

V

1

V

V

V

V

  

V

1

V

V

 

V

 

V

V

1

  1. Multiple drug resistant (MDR) is defined as acquired non-susceptibility to at least one agent in three of five antimicrobial categories or non-susceptibility to at least one agent in four of five antimicrobial categories but less than five antimicrobial agents. Extensive drug resistant (XDR) is defined as acquired non-susceptibility to at least one agent in four of five antimicrobial categories and at least five antimicrobial agents