sentences:  The challenge is not to make information available and locally understood, but to combat prevailing notions about the Oral Polio Vaccine (OPV).Misconceptions about OPV arose chiefly because of lack of adequate knowledge among families and the frequency of polio rounds and the intense rigour with which vaccinators visited localities and immunised children.CMCs are trained to quell these fears through facts and information about polio, how it spreads and its prevention.