<prompt> All show iceberg phenomenon except ?InfluenzaPolioHepatitisChicken pox  <response>: Ans. is d i.e., Chicken pox In some disease, a great deal of subclinical infection occurs ? i Rubella iii Polio v Japanese encephalitis vii Influenza ii Mumps iv Hepatitis A and B vi Diphtheria In chickenpox -Inapparent infection is estimated to occur in no more than 5 of susceptible children. 