INDORE: Madhya Pradesh government is all set to introduce a 'controversial' vaccine whose efficacy is still being debated in the country and elsewhere as some deaths of children were reported after they were administered the vaccine.

Much against caution by experts', Madhya Pradesh is mulling to launch pentavalent vaccine in National Immunisation Programme that targets five infections including diphtheria, pertussis, tetanus, hepatitis-B and HiB (haemophilius influenzae type B).