Since the most severe infections are caused by influenza type A and type B viruses, the available vaccines provide coverage against these two types. (sciencedaily.com)
influenza B Haemophilus influenza Type B (THE FLU), polyribosylribitol phosphate (A FLU COMPLEX CONJUGATE - DISABLES THE FLU PHAGOCYTE), ammonium sulfate (A PURIFICATION AGENT), formalin (A FORM OF FORMALDEHYDE, USED TO DISABLE THE FLU VIRII), and sucrose (SUGAR). (religion.blogs.cnn.com)
Vaccination with Haemophilus influenzae Type b prevents most cases of epiglottitis, a potentially life - threatening form of laryngitis in toddlers. (howtoadult.com)