The number of children coming to receive the oral polio vaccine on national immunisation days has started declining. The parents mainly say that the paramedical worker will come to their home the next day and administer the vaccine, so they need not bother to bring their child to the vaccination booth. The problem is more pronounced in high-rise buildings. People often do not bring their child to the booth even if the booth is located near the building. Discussions show that that they do not perceive their children to be susceptible to polio because doses have previously been administered; they also rely more on the advice of their family physician or paediatrician.