Health activists in India, observers the states push for pentavalent vaccines with suspicion. They are more expensive and does not really provide the cost-to-benefit.Also, experts are divided on the fact that there are 18 deaths reported on which state has confirmed 3 being caused by the vaccine.

EDIT: Context - gates pushes pentavalent vaccine being the exciting thing for next year. [1] http://www.downtoearth.org.in/content/centre-confirms-three-... [2] http://www.thehindu.com/news/cities/Thiruvananthapuram/penta... [3] http://www.downtoearth.org.in/content/policy-draft-backs-new...