Officials: Delta variant not dominant strain of COVID-19 in CT Peter Yankowski FacebookTwitterEmail 1of3 Gov. Ned Lamont unveiled the state's Rock the Shot vaccine incentive on June 25 at the Hartford Healthcare Amphitheater.Donald Eng / Hearst Connecticut MediaShow MoreShow Less 2of3 3of3 Connecticut health officials on Thursday said the delta variant of the coronavirus is not yet the dominant strain circulating in the state, a day after data from the Centers for Disease Control and Prevention showed the highly-infectious strain now makes up an estimated 51.7 percent of infections nationwide. “In Connecticut, delta is not yet the predominant variant like it is elsewhere in the United States,” said Acting Commissioner of the Department of Public Health Dr. Deidre Gifford. “Why is that? Probably it’s because we don’t have a lot of virus circulating in Connecticut, thank goodness. And that’s because... people are vaccinated.”