<prompt> All the following are true about H. influenza except:It can be part of normal flora of some personsThe serotyping is based on bacterial outer membrane proteinIt requires Hemin and NAD for growth in culture mediumType b is responsible for invasive disease  <response>: Ans. is b i.e., The serotyping is based on bacterial outer membrane proteinBased on Capsular polysaccharide H. influenzae has 6 serotypes a, b, c, d, e, f b subtype is Most Dangerous. 