THIRUVANTHAPURAM: Kerala State Health Minister KK Shailaja said the CPM-led LDF government might soon make vaccination mandatory for children getting school admissions.. She said instructions would be given to produce vaccination certificate at the time of the admission of children. The move comes in the wake of diphtheria scare in the Malappuram district of the state. With reports citing the reluctance of a section of people in the district to go in for vaccination being one of the reasons for the sudden spurt of the disease, Shailaja said a massive campaign to create awareness on vaccination would be launched in the state.