By now, we all know that National award winning actor Chiyaan Vikram is the Youth Envoy of United Nations Habitat, a United Nations Human Settlement Programme for the Asian Contingent. As a part of this initiative, Vikram will inaugurate the ‘World Hepatitis Day’ campaign in Chennai on July 31, 2011. The campaign is organised by MIOT Hospital in association with the World Health Organization (WHO). On this day, Hepatitis B screening followed by the first vaccination dose will be carried out free of cost. Not just that dose, the complete course of Hepatitis B vaccination will also be given free.