They knocked on strangers' doors and persuaded naysayers to get the COVID-19 vaccine. Here are their tips

When Armani Nightengale waited in the car last March to get vaccinated against COVID-19 at Chicago's United Center, her husband was more nervous than she was. Over the next couple of weeks, he carefully checked her arm to make sure nothing looked wrong. Then, the conversation shifted to when he would get the shot. That's when things got more 'combative,' Nightengale said, as she began asking why he was reluctant, especially given that they had three young children. Her husband, on the other hand, felt unsure about how signing up for the vaccine would affect his immigration status.