Sensex Today | Stock Market LIVE Updates: Drug firm Sanofi on Friday said it has obtained approval for IMOVAX-Polio, an alternative injectable vaccine, to replace the Inactivated Polio Vaccine (IPV) ShanIP in India. IMOVAX-Polio is an alternative IPV vaccine that has been used in more than 100 countries for over 40 years, a Sanofi India spokesperson told PTI.