Gram-negative bacilli ( coccobacillary morphology on nonselective agar) Predominantly diplococci Non-motile Strictly aerobic Catalase-positive Oxidase-negative Nitrate-negative Non-fermentative Citrate ...

  Haemophilus influenzae is a non-motile Gram-negative, coccobacillary, facultatively anaerobic bacterium, and it’s Oxidase and Catalase postive. It was mistakenly considered ...