An anti-polio vaccine, being used in India since 1978, could be shelved soon.
The India Expert Advisory Group (IEAG) on polio has recommended that the nation should stop the use of trivalent oral polio vaccine (TOPV), and only rely on the oral bivalent variant.
Experts say chances of vaccine derived polio virus infection (VDPV) are higher with the use of TOPV (that targets all three strains of polio virus - P1, P2 and P3) against the bivalent vaccine (that targets only P1 and P3).
However, the World Health Organization (WHO) will take a final call in April after the meeting of its Strategic Advisory Group of Experts (SAGE) on Immunization.
Makes sense: if you have no polio, using a live vaccine that is associated with reversion to virulence is not smart.
Via Ed Rybicki