It Will Save Your Life and End This Damn Pandemic The Covid-19 vaccines are extremely safe and effective, but many people are still hesitant to take one. Here’s how to persuade them. Mario Tama/Getty Images Viola, 75, receives a dose of the Moderna vaccine in Los Angeles on February 10. Dr. Oni Blackstock finished seeing patients one day in late December, and then she became the patient for a few minutes: She rolled up her sleeve and got her first Covid-19 shot. But as she chatted with the nurses—both at work that day and while filling out paperwork for the vaccine—she encountered the same line from several of them: “I’d like to wait and see.” While some of the nurses were clamoring to receive their own vaccines, others were wary.