Even so, Ms. Bennett said she felt doubly responsible as a nurse and a member of the Kiowa Tribe of Oklahoma to get vaccinated, in part to help ease skepticism among her neighbors.

“There’s a lot of distrust in our community,” Ms. Bennett said. “I want to show people, at least in my family and my community, that this is safe and we’ve got to do this.”

Still, wariness persists, even for some who know the toll the virus can take, especially among those who view the Trump administration with suspicion…

“Why not start with vaccinating the president and the people who developed the vaccine?” asked Ms. Ventura, a Mexican immigrant who makes ends meet by cleaning, waiting tables and cooking. “I am afraid more than anything of this vaccine because we don’t know what reaction we will have to it. Maybe in a few months we’ll know more.”