<prompt> Which of the following pleomorphic coccobacillus shows satellite phenomenon in blood agar?Anaerobic staphylococciH. influenzaeCorynebacterium diphtheriaBrucella abous  <response>: Haemophilus influenzae is a small 1- by 0.3-mm gram-negative organism of variable shape; hence, it is often described as a pleomorphic coccobacillus. On chocolate agar, flat, grayish brown colonies with diameters of 1-2 mm are present after 24 hours of incubation. H influenzae does not grow on sheep blood agar except around colonies of staphylococci satellite phenomenon. Ref: 2013. Chapter 18. Haemophilus, Bordetella, Brucella, and Francisella. InBrooks G.F., Carroll K.C., Butel J.S., Morse S.A., Mietzner T.A. Eds, Jawetz, Melnick, Adelbergs Medical Microbiology, 26e. 