What’s the secret to getting a COVID-19 vaccine appointment? Persistence, and an unwillingness to take no for an answer. Renee Dietrich is a Cedar Rapids native who has scheduled a dozen vaccine appointments for family members, friends and herself since February. Though luck may play a part, she said she’s had to learn a few tricks to find appointments.Every Iowan is expected to qualify for a COVID-19 vaccine starting April 5, regardless of age or health status, the governor announced last week.