When he first became eligible for the coronavirus vaccine in Illinois, Tom Arnold, 68, says he didn't need any convincing. He raises cattle, hogs and chickens in Elizabeth, a small rural town in the northwest corner of the state.
After all, who better to understand why herd immunity matters than a herdsman?
"Being a livestock producer, I'm well aware of vaccinations and vaccines," he says. "That's how we develop immunity in our animals. We're always vaccinating the breeding stock to pass on immunity to the little ones."