Haemophilus influenzae    (2018 Data)

Antibiotic
% Susceptible
 
Antibiotic
% Susceptible
Ampicillin
+/-
  Imipenem
+
Azithromycin
+
  Levofloxacin
+
Aztreonam
+
  Meropenem
+
Cefazolin
  Moxifloxacin
+
Cefepime
+
  Nitrofurantoin
&
Ceftazidime
+
  Oxacillin/Naf
-
Ceftriaxone
+
  Penicillin
-
Cefuroxime
+
  Piperacillin
+/-
Ciprofloxacin
+
  Piperacillin/tazo
+
Clarithromycin
+
  Ticarcillin/Clav
+
Clindamycin
-
  Tobramycin
+
Doxycycline
+
  TMP/SMX
+/-
Erythromycin
+/-
  Unasyn/Aug
+
Gentamicin
+
  Vancomycin
-
 
   

Number of isolates tested: Sanford Guide data

Comments:   Participating labs test only for presence of beta-lactamase.

For historical susceptibility data click here

Numeric data represent local susceptibility data.
(+) = usually effective or >60% susceptible; (+/-) = clinical trials lacking or 30-60% susceptible; (-) = not effective clinically or <30% susceptible - Adapted with permission from The Sanford Guide to Antimicrobial Therapy
(*) Local (non-Sanford Guide) opinion
(S) = synergistic with penicillin/ampicillin;
(&) nitrofurantoin only useful for lower tract urinary tract infections