X and V Factor Disks are paper disks impregnated with X (hemin) and V (nicotinamide adenine dinucleotide – NAD) growth factors. They are used for the differentiation of Haemophilus ...

  Haemophilus spp does not grow on 5% Sheep Blood Agar, which contains hemin (factor X) but lacks NAD (factor V). Haemophilus influenzae will grow in the hemolytic zone of ...

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

Chocolate agar is a non-selective, enriched growth medium. It is a variant of the blood agar plate, containing red blood cells that have been lysed by slowly heating to 80 °C. Chocolate ...