Nearly 7 million people in the US received a single dose of the Johnson & Johnson vaccine. Dr. Janet Woodcock, the acting commissioner of the F.D.A. says the pause will only last a few days, although this time frame depends on what we learn in the next few days.

Data collection in schools, paired with local EPI data, can better forecast and predict analytics, allowing educators to craft data-driven policies to open schools safely and efficiently with the least impact on the students’ social and learning objectives.