Top 5 Takeaways Rapid Outbreak Following School Event: An outbreak of influenza A(H3N2) occurred among attendees of a school banquet, with 41% of students reporting symptoms within a median of

Top 5 Takeaways Lower-cost Ventilation Strategies Predominate: The majority of U.S. K–12 public schools reported using lower-cost ventilation improvement strategies, such as relocating activities outdoors and opening doors or windows.