Nandi Hills, July 2 -- Karnataka Health Minister Dinesh Gundu Rao today asserted that no conclusive evidence has yet emerged linking COVID-19 vaccines to heart attacks, myocardial infarction, or cancer, and said ongoing investigations by global and national institutions have so far yielded no direct connection. Speaking to reporters, Rao said, "That is why there is a committee looking into it. Even earlier, such cases were referred to the Chief Secretary, and the committee is working on it." He stressed that such complex health questions require thorough, long-term research. "These investigations need to be carried out at a global and national scale, with comprehensive data collection. So far, no clear-cut findings have been made by the WHO...