<prompt> A 20 years old male patient presents to the STD clinic with a genital ulcer. The gram stain of the smear from ulcer shows gram negative coccobacilli. The most appropriate media for culture would be:Thayer Main MediumBlood agar with X V factorsChocolate agar with IsoVitaleXTeilurite blood agar  <response>: The clinical picture is suggestive of soft sore chancroid caused by Haemophilus ducreyi. Chocolate agar with IsoVitaleX is used for its culture. Other culture media: Thayer Main Medium - Gonococci Blood agar with X V factors - Haemophilus influenzae Tellurite blood agar - Corynbacterium diphtheriae Reference: Ananthanarayan and Paniker;s Textbook of Microbiology Tenth edition 