More than half of the chikungunya cases in the country are suspected to be from Karnataka.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/karnataka-accounts-more-half-nations-chikungunya-cases
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-herald-bangalore
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chikungunya
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vector-borne-diseases
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health