Dr. Julia Gill explains how health officials plan for the unexpected when trying to prevent the spread of diseases like H1N1 swine flu. She also describes how plans for a pandemic flu outbreak anticipated a much deadlier virus than the H1N1 flu has been. (1:24)

Gill explains why there are two flu vaccines this year: one for the so-called seasonal flu and one for the H1N1 swine flu. (1:14)

Dr. Daniel Haight says media coverage that focuses on cases at a single school can be misleading and unfair to that school. He says there are swine flu cases everywhere, but they might not be reported by parents who keep their children home. (0:52)

Linda Troupe and Sherri Reynolds talk about how their districts are prepared to continue teaching children if many students and teachers are infected with the flu. (1:34)