Christina Nunnally was driving to work when she heard on the radio that the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) were recommending a pause in the use of the Johnson & Johnson vaccine last week. As the chief quality officer for a network of primary care clinics in northern Mississippi, Nunnally knew she had just the rest of her 30-minute commute to formulate a plan for how her doctors would tell patients the news, reshuffle their schedule and ensure people kept coming in to get vaccinated.