Children are returning to classrooms amid another wave of Covid cases, but some public health leaders have leaned into the message that “most of us” can ignore the continued presence of Covid by taking just “a few basic steps,” such as staying up to date with vaccinations. “Most of us,” however, does not include families with young babies, among other groups for whom these steps are unavailable or insufficient.

Like the pandemic, uncertainty, growing confidence, and the return of doubt come in waves. The Omicron variant is just the latest twist in this plot.