What is meant by Satellitism?

Answer Posted / jovins cj

Must strains of Haemophilus spp does not grow on 5% Sheep Blood Agar, which contains hemin (factor X) but lacks NAD (factor V).

Staphylococcus aureus produce NAD as a metabolic byproduct when grow in a culture media. Therefore, Haemophilus spp may grow on sheep blood agar very close to the colonies of Staphylococcus aureus (as it produces NAD-factor V); this phenomenon is known as satellitism

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