Even the mere presence of the variant gives reason for increased awareness, experts say. Author: Sarah Jones Updated: 8:11 PM EDT July 7, 2021 INDIANAPOLIS — The Delta variant is in Indiana. Even the mere presence of the variant gives reason for increased awareness. "It was been confirmed in Indiana and I tell you people should be concerned," said Dr. David Dunkle, president and CEO of Johnson Memorial Health. "When it gets colder, people inside sitting closer together, and no mask wearing in school, we’re setting ourselves up for a potential bad storm come the fall." Studies point to the vaccine having an over 90% efficacy rate against the virus that causes COVID-19.