Red states in the U.S. lagging on vaccinations.

SAVANNAH, GEORGIA >> With coronavirus shots now in the arms of nearly half of American adults, the parts of the U.S. that are excelling and those that are struggling with vaccinations are starting to look like the nation’s political map: deeply divided between red and blue states.

Out in front is New Hampshire, where 65% of the population age 18 and older has received at least one dose of the vaccine, according to the Centers for Disease Control and Prevention. Following close behind are New Mexico, Connecticut, Maine and Massachusetts at 55% or greater. All have a history of voting Democratic and supported President Joe Biden in the 2020 election.

Meanwhile, at the bottom are five states where fewer than 40% have rolled up their sleeves for a shot. Four of them — Mississippi, Alabama, Louisiana and Tennessee — lean

Republican and voted for Donald Trump last fall. The fifth is Georgia, which has supported GOP presidential candidates for nearly three decades before narrowly backing Biden.

The emerging pattern: Americans in blue states that lean Democratic appear to be getting vaccinated at more robust rates, while those in red Republican states seem to be more hesitant.

“We can draw a conclusion that red states and voters that voted for Trump are going to be more difficult to vaccinate because we have real good survey data to support that,” said Dr. Howard Forman, a professor of public health and management at the Yale School of Medicine.

A poll by The Associated Press-NORC Center for Public Affairs Research in March found 36% of Republicans said they will probably or definitely not get vaccinated, compared with 12% of Democrats.