All the following species of Haemophillus show satellitism , except: (A) H. influenzae, (B) H.aegypticus, (C) H.haemolyticus, (D) H.ducreyi
Answer is D. Satellitism is seen when the organism lacks factor V that is provided by S.aureus. But H.ducreyi is needs only factor X for growth. Hence it does not show satellitism.