I don't think only Delhi and Kerala are mostly affectred. Infact in my visinity in MP, each and every family is sevearly affected,by chickenguniya. In each family atleast one or person affected, but govt. is nowhere, although there response so poor that private prectisioner are giving treatments of the major part of the society even they don't know how to treat. They are providing mix treatment of Malaria,typhoiad,hey fever etc. ,which is major cause of casulaties.