INDIA to switch to Bivalent Oral Polio Vaccine.

With India remaining polio free for five years now, the Government of India plans to switch to Bivalent Oral Polio Vaccine (OPV) from its present Trivalent version, in few months in a globally synchronised manner.

Trivalent OPV contains live and weakened versions for all the three types (1, 2 and 3) of wild polio while the bivalent vaccine will contain type 1 and 3.

India has already introduced injectable inactivated polio vaccine (IPV) into its routine immunisation programme along with oral polio vaccine (OPV) from November 2015.

In the first phase, IPV has been introduced in Assam, Gujarat, Punjab, Bihar, Madhya Pradesh, and Uttar Pradesh.